Why was my channel force-closed?

[microlancer]

My channel was force-closed and I don't understand why. It's an expensive process these days with the mempool being full. I wish I can avoid this somehow.

Here are my logs. Running LND 0.17.0-beta with bitcoind v22.0.0

You can see the force-closing channel on 5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1

2023-12-18 06:51:27.293 [INF] SRVR: Adding preimage=7b0d39399f46d795b4d77987238f5aa6a3eac03d345dd8bac46e61ef9c270101 to witness cache for 42cdcceac78ba9f886a665cec9e30670c9530b7fedd5d78c4b7592a4ad507c11
2023-12-18 06:51:31.042 [DBG] HSWC: Sent 10002 satoshis and received 10002 satoshis in the last 10 seconds (1.400000 tx/sec)
2023-12-18 06:53:06.769 [DBG] HSWC: Closed completed FAIL circuit for 67077ee197d2010ebd71045e5ff42cfd68c697d7edbecf987b75b2668681bd3b: (678639:1792:0, 26549) <-> (786553:583:0, 17369)
2023-12-18 06:53:40.462 [DBG] HSWC: Closed completed FAIL circuit for 4ef0244935c5f1e733d7a6fd34522b1365321b95cf7947261dd50b2e1715ab24: (811121:1147:0, 56889) <-> (791759:1489:1, 21849)
2023-12-18 06:53:44.081 [DBG] HSWC: Closed completed FAIL circuit for 457ec68a1dd1fe66b223214a7abaa9da9bbfbb2d59c4ddcdaa1cda29300d2606: (757226:1070:2, 92730) <-> (751597:264:1, 81221)
2023-12-18 06:53:58.438 [DBG] HSWC: Closed completed FAIL circuit for cbe171bf206c66b79fd05c65ea71e8ad71112f4bcdf1691610779664daadb25c: (757226:1070:2, 92731) <-> (751597:264:1, 81222)
2023-12-18 06:53:58.563 [DBG] HSWC: Closed completed FAIL circuit for 67077ee197d2010ebd71045e5ff42cfd68c697d7edbecf987b75b2668681bd3b: (678639:1792:0, 26550) <-> (769692:1990:0, 69709)
2023-12-18 06:54:00.686 [DBG] HSWC: Closed completed FAIL circuit for 4ef0244935c5f1e733d7a6fd34522b1365321b95cf7947261dd50b2e1715ab24: (811121:1147:0, 56890) <-> (675464:536:0, 150127)
2023-12-18 06:54:03.669 [DBG] HSWC: Closed completed FAIL circuit for c0afb97e44301076bedeebbbbde52a2497c6ec38e4fcdfcf6f80881cf77c2f5d: (750773:1622:1, 31737) <-> (808309:2941:0, 153089)
2023-12-18 06:54:03.747 [DBG] HSWC: Closed completed FAIL circuit for 9e69475b4af7b22a984c1b44168088db53560eb38316ff6093e9a4d9d714cac4: (810527:1624:2, 15006) <-> (759818:1149:0, 3782)
2023-12-18 06:54:42.521 [DBG] HSWC: Closed completed FAIL circuit for c2f60d99b6a37939262b4ad36e44904a1412fead398fc0a0059e145cf84f91d0: (804365:1739:4, 116575) <-> (792854:346:1, 192835)
2023-12-18 06:54:57.125 [DBG] HSWC: Closed completed FAIL circuit for c0afb97e44301076bedeebbbbde52a2497c6ec38e4fcdfcf6f80881cf77c2f5d: (750773:1622:1, 31738) <-> (808309:2941:0, 153090)
2023-12-18 06:55:30.807 [DBG] HSWC: Closed completed FAIL circuit for c0afb97e44301076bedeebbbbde52a2497c6ec38e4fcdfcf6f80881cf77c2f5d: (750773:1622:1, 31739) <-> (808309:2941:0, 153091)
2023-12-18 06:55:35.737 [INF] NANN: Announcing channel(bb0ca2b86ce0b50b45c8b2790278d09f3061ef2c5dc5885052cd0e7ee1f08428:0) disabled [detected]
2023-12-18 06:55:35.761 [INF] NANN: Announcing channel(377325a511255363401c382611b6a3c13842f1f0465d634b016fa38ae276943b:0) disabled [detected]
2023-12-18 06:56:18.562 [DBG] HSWC: Closed completed FAIL circuit for 78bf31ab14f6eeb67948130bb369bc5648e860f90b732d5d6c70fd3c368631e2: (810527:1624:2, 15007) <-> (761766:1204:1, 15625)
2023-12-18 06:56:20.363 [DBG] HSWC: Closed completed FAIL circuit for 6bfe389a07d7793ac9afd64c3033ef9b194f4761f6c3e820f5e431dce7d789e1: (675496:750:1, 5257) <-> (780198:834:0, 17304)
2023-12-18 06:56:34.683 [DBG] HSWC: Closed completed FAIL circuit for 42fec584cecbca8a1d4f14473f16affd8402fa76fd4045ff56641f4825cb78cc: (810593:874:1, 254) <-> (808309:2941:0, 153092)
2023-12-18 06:56:46.989 [DBG] HSWC: Closed completed FAIL circuit for 1a2a1e0fcaa37c8e53b2353f3b32b5e5bcc4e9999fc2b6761a24ca02967cbb14: (797034:1436:0, 35862) <-> (808309:2941:0, 153093)
2023-12-18 06:56:47.683 [INF] NTFN: New block: height=821733, sha=00000000000000000000167a358c10df4ec2cfdad5ecdb60ea204815ec6794d2
2023-12-18 06:56:47.690 [INF] UTXN: Attempting to graduate height=821733: num_kids=0, num_babies=0
2023-12-18 06:56:47.756 [INF] HSWC: Garbage collected 41 shared secret hashes at height=821733
2023-12-18 06:56:56.212 [INF] SRVR: New inbound connection from 45.88.223.141:44258
2023-12-18 06:56:56.213 [INF] SRVR: Finalizing connection to 03a3ad04bf160a487331e77bb6e146a658b2f4fd80abcc3aa462cacb02303864de@45.88.223.141:44258, inbound=true
2023-12-18 06:56:56.382 [INF] HSWC: ChannelLink(bb0ca2b86ce0b50b45c8b2790278d09f3061ef2c5dc5885052cd0e7ee1f08428:0): starting
2023-12-18 06:56:56.382 [INF] HSWC: Trimming open circuits for chan_id=773260:2413:0, start_htlc_id=12
2023-12-18 06:56:56.383 [INF] HSWC: Adding live link chan_id=2884f0e17e0ecd525088c55d2cef61309fd0780279b2c8450bb5e06cb8a20cbb, short_chan_id=773260:2413:0
2023-12-18 06:56:56.393 [INF] CNCT: Attempting to update ContractSignals for ChannelPoint(bb0ca2b86ce0b50b45c8b2790278d09f3061ef2c5dc5885052cd0e7ee1f08428:0)
2023-12-18 06:56:56.393 [INF] HSWC: ChannelLink(bb0ca2b86ce0b50b45c8b2790278d09f3061ef2c5dc5885052cd0e7ee1f08428:0): HTLC manager started, bandwidth=7907004 mSAT
2023-12-18 06:56:56.394 [INF] HSWC: ChannelLink(bb0ca2b86ce0b50b45c8b2790278d09f3061ef2c5dc5885052cd0e7ee1f08428:0): attempting to re-synchronize
2023-12-18 06:56:56.409 [INF] HSWC: ChannelLink(377325a511255363401c382611b6a3c13842f1f0465d634b016fa38ae276943b:0): starting
2023-12-18 06:56:56.410 [INF] HSWC: Trimming open circuits for chan_id=773385:2525:0, start_htlc_id=6821
2023-12-18 06:56:56.410 [INF] HSWC: Adding live link chan_id=3b9476e28aa36f014b635d46f0f14238c1a3b61126381c4063532511a5257337, short_chan_id=773385:2525:0
2023-12-18 06:56:56.410 [INF] CNCT: Attempting to update ContractSignals for ChannelPoint(377325a511255363401c382611b6a3c13842f1f0465d634b016fa38ae276943b:0)
2023-12-18 06:56:56.410 [INF] HSWC: ChannelLink(377325a511255363401c382611b6a3c13842f1f0465d634b016fa38ae276943b:0): HTLC manager started, bandwidth=2498300588 mSAT
2023-12-18 06:56:56.411 [INF] HSWC: ChannelLink(377325a511255363401c382611b6a3c13842f1f0465d634b016fa38ae276943b:0): attempting to re-synchronize
2023-12-18 06:56:56.416 [INF] NTFN: New block epoch subscription
2023-12-18 06:57:00.316 [INF] HSWC: ChannelLink(bb0ca2b86ce0b50b45c8b2790278d09f3061ef2c5dc5885052cd0e7ee1f08428:0): received re-establishment message from remote side
2023-12-18 06:57:00.319 [INF] HSWC: ChannelLink(377325a511255363401c382611b6a3c13842f1f0465d634b016fa38ae276943b:0): received re-establishment message from remote side
2023-12-18 06:57:00.322 [DBG] HSWC: ChannelLink(bb0ca2b86ce0b50b45c8b2790278d09f3061ef2c5dc5885052cd0e7ee1f08428:0): loaded 0 fwd pks
2023-12-18 06:57:00.324 [DBG] HSWC: ChannelLink(377325a511255363401c382611b6a3c13842f1f0465d634b016fa38ae276943b:0): loaded 0 fwd pks
2023-12-18 06:57:01.044 [DBG] HSWC: Sent 10328591 satoshis and received 7889052 satoshis in the last 10 seconds (1541.000000 tx/sec)
2023-12-18 06:58:09.431 [INF] NTFN: New block: height=821734, sha=0000000000000000000070ff020452f7c48c8e420ca8c2508e0b7c319d574d6e
2023-12-18 06:58:09.446 [INF] UTXN: Attempting to graduate height=821734: num_kids=0, num_babies=0
2023-12-18 06:58:09.526 [INF] HSWC: Garbage collected 39 shared secret hashes at height=821734
2023-12-18 06:58:09.552 [INF] CNCT: ChannelArbitrator(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): go to chain for outgoing htlc 4a5c41de120262337dbd262d1c2f9871d4c30d75231f438edba4ebd8171d068e: timeout=821734, blocks_until_expiry=0, broadcast_delta=0
2023-12-18 06:58:09.594 [INF] CNCT: ChannelArbitrator(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): force closing chan
2023-12-18 06:58:09.621 [INF] HSWC: ChannelLink(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): stopping
2023-12-18 06:58:09.624 [INF] HSWC: ChannelLink(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): exited
2023-12-18 06:58:09.667 [INF] HSWC: Removing channel link with ChannelID(b1ccdd25a9034a29c223238b421303d994a1ddf4d75db66a828160ed170fde5d)
2023-12-18 06:58:09.740 [INF] CNCT: Broadcasting force close transaction 970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87, ChannelPoint(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): (*wire.MsgTx)(0xc021bb3dc0)({
 Version: (int32) 2,
 TxIn: ([]*wire.TxIn) (len=1 cap=1) {
  (*wire.TxIn)(0xc0357e1680)({
   PreviousOutPoint: (wire.OutPoint) 5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1,
   SignatureScript: ([]uint8) <nil>,
   Witness: (wire.TxWitness) (len=4 cap=4) {
    ([]uint8) <nil>,
    ([]uint8) (len=71 cap=144) {
     00000000  30 44 02 20 31 60 dc 96  15 ba f3 62 c4 9e be ae  |0D. 1`.....b....|
     00000010  f1 bf d7 b8 92 d5 5b 2a  a3 88 91 8e 62 6a 4b b4  |......[*....bjK.|
     00000020  29 37 55 2a 02 20 44 2f  33 b1 85 6e f4 5a 40 e2  |)7U*. D/3..n.Z@.|
     00000030  5a ab 61 c3 5b 25 a3 c5  da e3 f4 73 86 82 e5 81  |Z.a.[%.....s....|
     00000040  9e 48 0c 5e 71 e9 01                              |.H.^q..|
    },
    ([]uint8) (len=71 cap=144) {
     00000000  30 44 02 20 7a 58 cc 66  a2 38 bc a9 ff 0f 2d 50  |0D. zX.f.8....-P|
     00000010  36 a5 2c 4d 97 66 21 2b  e9 a7 9b 68 85 0e a5 15  |6.,M.f!+...h....|
     00000020  a2 ce d0 d0 02 20 0b 67  21 92 26 d3 d6 16 73 d8  |..... .g!.&...s.|
     00000030  7e 58 d0 a9 a8 cb 46 a6  95 02 60 5d ac f8 07 69  |~X....F...`]...i|
     00000040  ce 5d 40 97 af 41 01                              |.]@..A.|
    },
    ([]uint8) (len=71 cap=71) {
     00000000  52 21 03 38 b4 8f 29 c5  85 43 54 62 79 70 fe ee  |R!.8..)..CTbyp..|
     00000010  b1 94 fa 70 64 bf cc 9b  b1 ae 38 da d4 19 77 a3  |...pd.....8...w.|
     00000020  f0 33 be 21 03 be 6b e7  a8 70 fa 58 97 c6 f5 c5  |.3.!..k..p.X....|
     00000030  88 68 4b 21 7b 47 3c f9  ad 17 2c a8 44 78 29 20  |.hK!{G<...,.Dx) |
     00000040  de 29 f1 41 40 52 ae                              |.).A@R.|
    }
   },
   Sequence: (uint32) 2151191816
  })
 },
 TxOut: ([]*wire.TxOut) (len=5 cap=5) {
  (*wire.TxOut)(0xc0088c2700)({
   Value: (int64) 330,
   PkScript: ([]uint8) (len=34 cap=34) {
    00000000  00 20 70 08 f2 bb 25 48  56 e6 48 b0 83 d6 cf 4e  |. p...%HV.H....N|
    00000010  41 17 fa fa 0b e7 32 0a  f8 29 5c 66 7e 17 35 a8  |A.....2..)\f~.5.|
    00000020  0a 0b                                             |..|
   }
  }),
  (*wire.TxOut)(0xc0088c2720)({
   Value: (int64) 330,
   PkScript: ([]uint8) (len=34 cap=34) {
    00000000  00 20 89 9b 8b 55 ef 4a  70 76 51 26 e7 40 29 b6  |. ...U.JpvQ&.@).|
    00000010  72 6f 19 5b 41 f4 5b ff  90 d9 34 8c 91 ef 02 30  |ro.[A.[...4....0|
    00000020  93 d6                                             |..|
   }
  }),
  (*wire.TxOut)(0xc0088c2740)({
   Value: (int64) 5000,
   PkScript: ([]uint8) (len=34 cap=34) {
    00000000  00 20 65 9c 07 a7 f4 e4  0d 27 ee b9 b6 4a 9d e7  |. e......'...J..|
    00000010  f8 b3 be 62 85 52 2f b0  f6 91 4b 4d 83 7d 11 cd  |...b.R/...KM.}..|
    00000020  65 13                                             |e.|
   }
  }),
  (*wire.TxOut)(0xc0088c2780)({
   Value: (int64) 11756,
   PkScript: ([]uint8) (len=34 cap=34) {
    00000000  00 20 c9 be 8c c6 50 71  fa 09 be 4f 53 b3 63 d8  |. ....Pq...OS.c.|
    00000010  ac 75 10 83 eb 46 68 a3  50 a7 cf 2f ee 9c ef db  |.u...Fh.P../....|
    00000020  eb c0                                             |..|
   }
  }),
  (*wire.TxOut)(0xc0088c27a0)({
   Value: (int64) 1079010,
   PkScript: ([]uint8) (len=34 cap=34) {
    00000000  00 20 77 2c 0b b6 4e e5  7a 95 f8 57 b4 9f 76 99  |. w,..N.z..W..v.|
    00000010  26 1b 5b 47 76 44 12 f7  62 05 db a0 6e dd 7a 34  |&.[GvD..b...n.z4|
    00000020  43 58                                             |CX|
   }
  })
 },
 LockTime: (uint32) 553248713
})

2023-12-18 06:58:09.893 [INF] LNWL: Inserting unconfirmed transaction 970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87
2023-12-18 06:58:10.003 [INF] NTFN: New confirmation subscription: conf_id=7, txid=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87, num_confs=6 height_hint=821734
2023-12-18 06:58:10.069 [WRN] CNCT: ChannelArbitrator(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): deadline is passed with deadlineMinHeight=821734, heightHint=821734
2023-12-18 06:58:10.126 [INF] SWPR: Sweep request received: out_point=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:1, witness_type=CommitmentAnchor, relative_time_lock=0, absolute_time_lock=0, amount=0.00000330 BTC, parent=(fee=0.00003574 BTC, weight=1288), params=(fee=1 blocks, force=true, exclusive_group=836678870774579201)
2023-12-18 06:58:10.127 [WRN] CNCT: ChannelArbitrator(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): deadline is passed with deadlineMinHeight=821734, heightHint=821734
2023-12-18 06:58:10.130 [INF] NTFN: New spend subscription: spend_id=115, outpoint=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:1, script=0 899b8b55ef4a70765126e74029b6726f195b41f45bff90d9348c91ef023093d6, height_hint=821734
2023-12-18 06:58:10.131 [INF] NTFN: Dispatching historical spend rescan for outpoint=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:1, script=0 899b8b55ef4a70765126e74029b6726f195b41f45bff90d9348c91ef023093d6, start=821734, end=821734
2023-12-18 06:58:10.161 [INF] SWPR: Sweep request received: out_point=4f131567cbd7ff6743a1197e2beef619e58aafdd8e3a40ec793cd2aeafa8eae1:1, witness_type=CommitmentAnchor, relative_time_lock=0, absolute_time_lock=0, amount=0.00000330 BTC, parent=(fee=0.00003574 BTC, weight=1288), params=(fee=1 blocks, force=true, exclusive_group=836678870774579201)
2023-12-18 06:58:10.231 [INF] SWPR: Candidate sweep set of size=1 (+2 wallet inputs), has yield=-0.00349397 BTC, weight=908
2023-12-18 06:58:10.231 [INF] SWPR: Sweep candidates at height=821734 with fee_rate=160884 sat/kw, yield 1 distinct txns
2023-12-18 06:58:10.231 [INF] NTFN: New spend subscription: spend_id=116, outpoint=4f131567cbd7ff6743a1197e2beef619e58aafdd8e3a40ec793cd2aeafa8eae1:1, script=0 899b8b55ef4a70765126e74029b6726f195b41f45bff90d9348c91ef023093d6, height_hint=821734
2023-12-18 06:58:10.232 [INF] NTFN: Dispatching historical spend rescan for outpoint=4f131567cbd7ff6743a1197e2beef619e58aafdd8e3a40ec793cd2aeafa8eae1:1, script=0 899b8b55ef4a70765126e74029b6726f195b41f45bff90d9348c91ef023093d6, start=821734, end=821734
2023-12-18 06:58:10.249 [INF] CNCT: ChannelArbitrator(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): trigger chainTrigger moving from state StateCommitmentBroadcasted to StateCommitmentBroadcasted
2023-12-18 06:58:10.475 [INF] NTFN: Historical spend dispatch finished for request outpoint=4f131567cbd7ff6743a1197e2beef619e58aafdd8e3a40ec793cd2aeafa8eae1:1, script=0 899b8b55ef4a70765126e74029b6726f195b41f45bff90d9348c91ef023093d6 (start=821734 end=821734) with details: <nil>
2023-12-18 06:58:36.153 [DBG] HSWC: Closed completed FAIL circuit for 6191cb4bcbd938d9c8fcbd8913c4eb5da0f8cfccef7c038cd7b869b776b3c673: (810593:874:1, 255) <-> (792854:346:1, 192836)
2023-12-18 06:58:40.270 [INF] SWPR: Candidate sweep set of size=1 (+2 wallet inputs), has yield=-0.00349397 BTC, weight=908
2023-12-18 06:58:40.281 [INF] SWPR: Creating sweep transaction d948e5fb5851860cbea71245d6899a3c892d71953e0b4e53addb99a4fe5ebdc0 for 3 inputs (970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:1 (CommitmentAnchor), d28e4494a6f91dbd555a28515103d847a241cd147dfb6a2bd5b06ae1b36b4710:0 (TaprootPubKeySpend), bc4c77661c4af4010fcb67e89fe96d1e3113bf0705ec6eb9a2f4e6f83921d972:0 (TaprootPubKeySpend)) using 160884 sat/kw, tx_weight=956, tx_fee=0.00357449 BTC, parents_count=1, parents_fee=0.00003574 BTC, parents_weight=1288
2023-12-18 06:58:40.303 [INF] LNWL: Inserting unconfirmed transaction d948e5fb5851860cbea71245d6899a3c892d71953e0b4e53addb99a4fe5ebdc0
2023-12-18 06:58:40.356 [INF] SWPR: Candidate sweep set of size=1 (+1 wallet inputs), has yield=-0.00312233 BTC, weight=677
2023-12-18 06:58:40.366 [INF] NTFN: New confirmation subscription: conf_id=8, txid=d948e5fb5851860cbea71245d6899a3c892d71953e0b4e53addb99a4fe5ebdc0, num_confs=6 height_hint=821734
2023-12-18 06:58:40.408 [INF] SWPR: Creating sweep transaction ee08630e8f171d094b61712e7a088b976bd1d4856b73c9803d9b4028fc60d984 for 2 inputs (4f131567cbd7ff6743a1197e2beef619e58aafdd8e3a40ec793cd2aeafa8eae1:1 (CommitmentAnchor), 67788bfec988b4835575726a6679c40736d300d69a9ba3f02dbda61ab5e8f727:0 (TaprootPubKeySpend)) using 160884 sat/kw, tx_weight=725, tx_fee=0.00320285 BTC, parents_count=1, parents_fee=0.00003574 BTC, parents_weight=1288
2023-12-18 06:58:40.435 [ERR] BTCN: Broadcast attempt failed: double spend: -25: bad-txns-inputs-missingorspent
2023-12-18 06:58:40.438 [INF] LNWL: Inserting unconfirmed transaction ee08630e8f171d094b61712e7a088b976bd1d4856b73c9803d9b4028fc60d984
2023-12-18 06:58:40.457 [INF] LNWL: ee08630e8f171d094b61712e7a088b976bd1d4856b73c9803d9b4028fc60d984: broadcast failed because of: double spend: -25: bad-txns-inputs-missingorspent
2023-12-18 06:58:40.466 [INF] LNWL: Removed invalid transaction: (*wire.MsgTx)(0xc02c3cb900)({
 Version: (int32) 2,
 TxIn: ([]*wire.TxIn) (len=2 cap=15) {
  (*wire.TxIn)(0xc01e0eeb40)({
   PreviousOutPoint: (wire.OutPoint) 4f131567cbd7ff6743a1197e2beef619e58aafdd8e3a40ec793cd2aeafa8eae1:1,
   SignatureScript: ([]uint8) <nil>,
   Witness: (wire.TxWitness) (len=2 cap=2) {
    ([]uint8) (len=71 cap=144) {
     00000000  30 44 02 20 06 a5 50 b3  b5 c1 66 aa e7 ad 41 25  |0D. ..P...f...A%|
     00000010  72 9e 44 85 bd af f5 5b  dc 71 a2 7d f0 f0 d9 5e  |r.D....[.q.}...^|
     00000020  59 49 b0 bb 02 20 6c 44  d5 aa e8 4a a1 45 bc 5d  |YI... lD...J.E.]|
     00000030  43 a1 e4 1f a2 a2 3a 82  e4 ca ea 89 70 6e fc 68  |C.....:.....pn.h|
     00000040  16 2d c8 ea 35 be 01                              |.-..5..|
    },
    ([]uint8) (len=40 cap=40) {
     00000000  21 03 38 b4 8f 29 c5 85  43 54 62 79 70 fe ee b1  |!.8..)..CTbyp...|
     00000010  94 fa 70 64 bf cc 9b b1  ae 38 da d4 19 77 a3 f0  |..pd.....8...w..|
     00000020  33 be ac 73 64 60 b2 68                           |3..sd`.h|
    }
   },
   Sequence: (uint32) 0
  }),
  (*wire.TxIn)(0xc01e0eeba0)({
   PreviousOutPoint: (wire.OutPoint) 67788bfec988b4835575726a6679c40736d300d69a9ba3f02dbda61ab5e8f727:0,
   SignatureScript: ([]uint8) <nil>,
   Witness: (wire.TxWitness) (len=1 cap=1) {
    ([]uint8) (len=64 cap=64) {
     00000000  f5 83 c9 3d ad ad ea 06  44 e9 57 6f b3 c6 c1 7f  |...=....D.Wo....|
     00000010  c0 0a 6c 61 b5 70 45 7e  19 32 17 ab e4 3c f7 5d  |..la.pE~.2...<.]|
     00000020  6d 22 2d c7 9b 46 dc c2  69 1d 74 27 f9 c9 b3 f6  |m"-..F..i.t'....|
     00000030  5d 2e 1b 45 84 98 ee 5c  bb 53 30 93 03 53 57 ca  |]..E...\.S0..SW.|
    }
   },
   Sequence: (uint32) 0
  })
 },
 TxOut: ([]*wire.TxOut) (len=1 cap=15) {
  (*wire.TxOut)(0xc01582bda0)({
   Value: (int64) 46084,
   PkScript: ([]uint8) (len=34 cap=500) {
    00000000  51 20 e4 b3 c9 d4 79 81  54 81 3b fe 0f ba 29 5b  |Q ....y.T.;...)[|
    00000010  34 80 80 b9 11 c8 56 46  59 2e df d0 96 fb 2f f6  |4.....VFY...../.|
    00000020  26 17                                             |&.|
   }
  })
 },
 LockTime: (uint32) 821734
})

2023-12-18 06:58:40.472 [INF] LNWL: Removed invalid transaction: 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
2023-12-18 06:58:40.481 [ERR] SWPR: Publish sweep tx ee08630e8f171d094b61712e7a088b976bd1d4856b73c9803d9b4028fc60d984 got error: transaction rejected: output already spent
2023-12-18 06:58:52.700 [DBG] HSWC: Closed completed FAIL circuit for 6191cb4bcbd938d9c8fcbd8913c4eb5da0f8cfccef7c038cd7b869b776b3c673: (810593:874:1, 256) <-> (807942:994:1, 7140)
2023-12-18 06:58:55.615 [INF] NTFN: Cancelling epoch notification, epoch_id=2128
2023-12-18 06:58:56.026 [DBG] HSWC: Closed completed FAIL circuit for 6191cb4bcbd938d9c8fcbd8913c4eb5da0f8cfccef7c038cd7b869b776b3c673: (810593:874:1, 257) <-> (751597:264:1, 81223)
2023-12-18 06:59:07.650 [DBG] HSWC: Closed completed FAIL circuit for 6191cb4bcbd938d9c8fcbd8913c4eb5da0f8cfccef7c038cd7b869b776b3c673: (810593:874:1, 258) <-> (756344:1059:1, 130615)
2023-12-18 06:59:18.853 [DBG] HSWC: Closed completed FAIL circuit for b4c90f9c740fda9477691fce32cfb83db665c612acab39d63eb5c5d0305438f8: (811121:1147:0, 56891) <-> (792854:346:1, 192837)
2023-12-18 06:59:19.894 [DBG] HSWC: Closed completed FAIL circuit for 1debb6f1ebb25ad16a4cb8b7248f0aa45b4bcda10f0cbde67f36ebaa53a6d208: (769692:1990:0, 138913) <-> (751597:264:1, 81224)
2023-12-18 07:00:34.408 [DBG] HSWC: Closed completed FAIL circuit for 7a280e6f244d3353c6f3885757be753ab7e4ae41c27cf5ae9112a972d2f1578e: (769692:1990:0, 138914) <-> (751597:264:1, 81225)
2023-12-18 07:00:35.002 [DBG] HSWC: Closed completed FAIL circuit for c0afb97e44301076bedeebbbbde52a2497c6ec38e4fcdfcf6f80881cf77c2f5d: (750773:1622:1, 31740) <-> (808309:2941:0, 153094)
2023-12-18 07:00:39.218 [DBG] HSWC: Closed completed FAIL circuit for cf16b20492abf16884ec7fb75cc0ef21a24fd7f379e598998eec1e5d9ca2121c: (757226:1070:2, 92732) <-> (751597:264:1, 81226)
2023-12-18 07:00:40.123 [DBG] HSWC: Closed completed FAIL circuit for c0afb97e44301076bedeebbbbde52a2497c6ec38e4fcdfcf6f80881cf77c2f5d: (750773:1622:1, 31741) <-> (808309:2941:0, 153095)
2023-12-18 07:00:40.752 [DBG] HSWC: Closed completed FAIL circuit for c0afb97e44301076bedeebbbbde52a2497c6ec38e4fcdfcf6f80881cf77c2f5d: (750773:1622:1, 31742) <-> (808309:2941:0, 153096)
2023-12-18 07:01:03.563 [DBG] HSWC: Closed completed FAIL circuit for e7caec4446eb4489fab9c1f5b4c04f09606b5cb55015453a8d5aafda10f46635: (786664:2150:5, 54219) <-> (810527:1624:2, 14204)
2023-12-18 07:01:30.652 [DBG] HSWC: Closed completed FAIL circuit for 6191cb4bcbd938d9c8fcbd8913c4eb5da0f8cfccef7c038cd7b869b776b3c673: (810593:874:1, 259) <-> (751597:264:1, 81227)
2023-12-18 07:01:38.379 [DBG] HSWC: Closed completed FAIL circuit for a0108bde089a53bb9847a94f7d397a233c60556204ade36fd72fce9dd9ab3bf0: (757226:1070:2, 92733) <-> (751597:264:1, 81228)
2023-12-18 07:02:12.035 [DBG] HSWC: Closed completed FAIL circuit for 269d6b2a5377725cf4635cc4aadefe4d612315a8d92fd2d59e47858836af45b3: (803188:1618:1, 76227) <-> (808309:2941:0, 153097)
2023-12-18 07:02:13.929 [DBG] HSWC: Closed completed FAIL circuit for 3d0da00b0fecbaf557b1c98c9fa561d4b6c7a0878d973135d1f6ab020f0fbec9: (797034:1436:0, 35863) <-> (808309:2941:0, 153098)
2023-12-18 07:02:15.085 [DBG] HSWC: Closed completed FAIL circuit for e22e5cacff150aebd08fbd1d81500cb89019ccbf926b00a28a90c06b5745d912: (807942:994:1, 6120) <-> (808309:2941:0, 153099)
2023-12-18 07:03:41.474 [INF] NANN: Announcing channel(b908a17a1682850b82905ddeb708ebea63b93bfe57528f541ded7cec6d919d3c:1) enabled
2023-12-18 07:03:53.534 [INF] LNWL: Marking unconfirmed transaction d948e5fb5851860cbea71245d6899a3c892d71953e0b4e53addb99a4fe5ebdc0 mined in block 821735
2023-12-18 07:03:59.698 [INF] NTFN: New block: height=821735, sha=00000000000000000003d9d34c0325d7b5936964fbfe51173c8a2d9fde728a69
2023-12-18 07:03:59.699 [INF] NTFN: Dispatching confirmed spend notification for outpoint=5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1, script=0 056284ce9d06e93f62bc62718b25897c9934588ef97cec6330e071bf2b3f1946 at current height=821735: 970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87[0] spending 5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1 at height=821735
2023-12-18 07:03:59.710 [INF] NTFN: Dispatching confirmed spend notification for outpoint=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:1, script=0 899b8b55ef4a70765126e74029b6726f195b41f45bff90d9348c91ef023093d6 at current height=821735: d948e5fb5851860cbea71245d6899a3c892d71953e0b4e53addb99a4fe5ebdc0[0] spending 970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:1 at height=821735
2023-12-18 07:03:59.703 [INF] UTXN: Attempting to graduate height=821735: num_kids=0, num_babies=0
2023-12-18 07:03:59.720 [INF] CNCT: Local unilateral close of ChannelPoint(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1) detected
2023-12-18 07:03:59.759 [INF] CNCT: ChannelArbitrator(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): local on-chain channel close
2023-12-18 07:03:59.788 [INF] HSWC: Garbage collected 32 shared secret hashes at height=821735
2023-12-18 07:03:59.800 [INF] SWPR: Candidate sweep set of size=1 (+1 wallet inputs), has yield=-0.00312233 BTC, weight=677
2023-12-18 07:03:59.802 [INF] SWPR: Sweep candidates at height=821735 with fee_rate=160884 sat/kw, yield 1 distinct txns
2023-12-18 07:03:59.803 [INF] NTFN: Canceling spend notification: spend_id=115, outpoint=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:1, script=0 899b8b55ef4a70765126e74029b6726f195b41f45bff90d9348c91ef023093d6
2023-12-18 07:03:59.803 [INF] NTFN: Canceling spend notification: spend_id=116, outpoint=4f131567cbd7ff6743a1197e2beef619e58aafdd8e3a40ec793cd2aeafa8eae1:1, script=0 899b8b55ef4a70765126e74029b6726f195b41f45bff90d9348c91ef023093d6
2023-12-18 07:04:01.559 [INF] CNCT: ChannelArbitrator(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): trigger localCloseTrigger moving from state StateCommitmentBroadcasted to StateContractClosed
2023-12-18 07:04:01.610 [INF] CNCT: ChannelArbitrator(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): go to chain for outgoing htlc 4a5c41de120262337dbd262d1c2f9871d4c30d75231f438edba4ebd8171d068e: timeout=821734, blocks_until_expiry=-1, broadcast_delta=0
2023-12-18 07:04:01.776 [INF] SWPR: Sweep request received: out_point=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:1, witness_type=CommitmentAnchor, relative_time_lock=0, absolute_time_lock=0, amount=0.00000330 BTC, parent=(<nil>), params=(fee=253 sat/kw, force=false, exclusive_group=nil)
2023-12-18 07:04:01.778 [INF] NTFN: New spend subscription: spend_id=117, outpoint=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:1, script=0 899b8b55ef4a70765126e74029b6726f195b41f45bff90d9348c91ef023093d6, height_hint=821735
2023-12-18 07:04:01.779 [INF] NTFN: Dispatching confirmed spend notification for outpoint=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:1, script=0 899b8b55ef4a70765126e74029b6726f195b41f45bff90d9348c91ef023093d6 at current height=821735: d948e5fb5851860cbea71245d6899a3c892d71953e0b4e53addb99a4fe5ebdc0[0] spending 970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:1 at height=821735
2023-12-18 07:04:01.784 [INF] CNCT: *contractcourt.htlcTimeoutResolver(4a5c41de120262337dbd262d1c2f9871d4c30d75231f438edba4ebd8171d068e): offering second-layer timeout tx to sweeper: (*wire.MsgTx)(0xc02fb62300)({
 Version: (int32) 2,
 TxIn: ([]*wire.TxIn) (len=1 cap=1) {
  (*wire.TxIn)(0xc01c485bc0)({
   PreviousOutPoint: (wire.OutPoint) 970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:2,
   SignatureScript: ([]uint8) {
   },
   Witness: (wire.TxWitness) (len=5 cap=5) {
    ([]uint8) {
    },
    ([]uint8) (len=71 cap=71) {
     00000000  30 44 02 20 6b 4b be 81  df 99 98 cd be 80 92 21  |0D. kK.........!|
     00000010  a8 01 81 66 91 63 1f 90  75 bd 89 47 c9 45 c5 8b  |...f.c..u..G.E..|
     00000020  24 63 87 a6 02 20 4b 94  05 41 be 43 de c0 cc ad  |$c... K..A.C....|
     00000030  c6 8a 70 31 df fe 2c ea  62 63 83 3c 4f a8 0f e5  |..p1..,.bc.<O...|
     00000040  f4 50 7d d4 b2 84 83                              |.P}....|
    },
    ([]uint8) (len=72 cap=72) {
     00000000  30 45 02 21 00 a1 01 77  6e 0e 29 b6 77 d0 4c b2  |0E.!...wn.).w.L.|
     00000010  1a 11 e9 14 90 db 2e 59  68 67 8e 71 16 e4 cc 6d  |.......Yhg.q...m|
     00000020  2e 5e ec 14 79 02 20 7e  00 db 44 36 e1 74 5e 26  |.^..y. ~..D6.t^&|
     00000030  f4 ea a4 1f b2 12 71 00  66 62 fd 14 0d 36 0e a5  |......q.fb...6..|
     00000040  c9 0b ea 9f 87 34 5f 01                           |.....4_.|
    },
    ([]uint8) {
    },
    ([]uint8) (len=136 cap=136) {
     00000000  76 a9 14 67 8d 11 c5 0e  e3 98 b2 13 13 7d c9 b0  |v..g.........}..|
     00000010  88 90 8c 89 dd 83 62 87  63 ac 67 21 03 49 a1 c1  |......b.c.g!.I..|
     00000020  e9 8f 19 7e 0b bf a3 b4  5f 17 bd 91 dc 6c a6 d0  |...~...._....l..|
     00000030  c8 ae b9 3b 5a 8d f1 fe  8b fd 41 86 2d 7c 82 01  |...;Z.....A.-|..|
     00000040  20 87 64 75 52 7c 21 03  8a b6 17 73 ce 6a fb 5c  | .duR|!....s.j.\|
     00000050  c2 d8 86 60 ad 9c 59 40  db 2e 5f 6e af bf 74 04  |...`..Y@.._n..t.|
     00000060  31 f9 62 4e 9a 7d d5 00  52 ae 67 a9 14 62 bc 06  |1.bN.}..R.g..b..|
     00000070  89 a8 83 ef 1a 11 cd 16  7f 52 8a 92 b5 b8 ea fa  |.........R......|
     00000080  57 88 ac 68 51 b2 75 68                           |W..hQ.uh|
    }
   },
   Sequence: (uint32) 1
  })
 },
 TxOut: ([]*wire.TxOut) (len=1 cap=1) {
   Value: (int64) 5000,
   PkScript: ([]uint8) (len=34 cap=34) {
    00000000  00 20 77 2c 0b b6 4e e5  7a 95 f8 57 b4 9f 76 99  |. w,..N.z..W..v.|
    00000010  26 1b 5b 47 76 44 12 f7  62 05 db a0 6e dd 7a 34  |&.[GvD..b...n.z4|
    00000020  43 58                                             |CX|
   }
  })
 },
 LockTime: (uint32) 821734
})

2023-12-18 07:04:01.790 [INF] NTFN: New confirmation subscription: conf_id=9, txid=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87, num_confs=1 height_hint=821735
2023-12-18 07:04:01.805 [INF] CNCT: ChannelArbitrator(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): still awaiting contract resolution
2023-12-18 07:04:01.809 [INF] SWPR: Sweep request received: out_point=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:2, witness_type=HtlcOfferedTimeoutSecondLevelInputConfirmed, relative_time_lock=1, absolute_time_lock=821734, amount=0.00005000 BTC, parent=(<nil>), params=(fee=6 blocks, force=true, exclusive_group=nil)
2023-12-18 07:04:01.843 [INF] NTFN: New spend subscription: spend_id=118, outpoint=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:2, script=0 659c07a7f4e40d27eeb9b64a9de7f8b3be6285522fb0f6914b4d837d11cd6513, height_hint=821735
2023-12-18 07:04:01.845 [INF] NTFN: Dispatching historical spend rescan for outpoint=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:2, script=0 659c07a7f4e40d27eeb9b64a9de7f8b3be6285522fb0f6914b4d837d11cd6513, start=821735, end=821735
2023-12-18 07:04:01.843 [INF] CNCT: *contractcourt.htlcTimeoutResolver(b23b4839cc4085e31e89a07ac151d9b6d06c649f59353c37184be81d544e416e:0): waiting for spent of HTLC output 970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:2 to be found in mempool or block
2023-12-18 07:04:01.848 [INF] NTFN: New spend subscription: spend_id=119, outpoint=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:2, script=0 659c07a7f4e40d27eeb9b64a9de7f8b3be6285522fb0f6914b4d837d11cd6513, height_hint=821735
2023-12-18 07:04:01.917 [INF] NTFN: Canceling spend notification: spend_id=117, outpoint=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:1, script=0 899b8b55ef4a70765126e74029b6726f195b41f45bff90d9348c91ef023093d6
2023-12-18 07:04:01.940 [INF] CNCT: ChannelArbitrator(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): a contract has been fully resolved!
2023-12-18 07:04:01.941 [INF] CNCT: ChannelArbitrator(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): still awaiting contract resolution
2023-12-18 07:04:07.471 [INF] NTFN: Dispatching 1 confirmation notification for txid=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87
2023-12-18 07:04:07.472 [INF] NTFN: Canceling confirmation notification: conf_id=9, txid=970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87
2023-12-18 07:04:07.473 [INF] NTFN: New block epoch subscription
2023-12-18 07:04:29.823 [INF] SWPR: Candidate sweep set of size=1 (+1 wallet inputs), has yield=-0.00129968 BTC, weight=1021
2023-12-18 07:04:29.832 [INF] SWPR: Creating sweep transaction af08060c412d6d3c27db6fe62a95488a3772bab6ffbdb8cfabc00898167cc003 for 2 inputs (970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:2 (HtlcOfferedTimeoutSecondLevelInputConfirmed), 67788bfec988b4835575726a6679c40736d300d69a9ba3f02dbda61ab5e8f727:0 (TaprootPubKeySpend)) using 132192 sat/kw, tx_weight=1069, tx_fee=0.00141313 BTC, parents_count=0, parents_fee=0 BTC, parents_weight=0
2023-12-18 07:04:29.859 [INF] NTFN: Found input 970cf347b1c354730a3ea5c6028541aece0fc2b99c6323280d03dddabb392a87:2, spent in af08060c412d6d3c27db6fe62a95488a3772bab6ffbdb8cfabc00898167cc003
2023-12-18 07:04:29.860 [INF] LNWL: Inserting unconfirmed transaction af08060c412d6d3c27db6fe62a95488a3772bab6ffbdb8cfabc00898167cc003
2023-12-18 07:04:29.924 [INF] NTFN: New confirmation subscription: conf_id=10, txid=af08060c412d6d3c27db6fe62a95488a3772bab6ffbdb8cfabc00898167cc003, num_confs=6 height_hint=821735
2023-12-18 07:04:53.859 [WRN] HSWC: ChannelLink(fd56119a971856449042e1b158984fabf4d90c796797afb7491bf7b4609f499f:1): outgoing htlc(6382222f14c22dda34f558ed41e044663f3f2a7ec3fd995715d087dfa1483028) has insufficient fee: expected 6855, got 6285
2023-12-18 07:05:23.326 [DBG] HSWC: Closed completed FAIL circuit for 4cfde2dcf81560e34fbc630c0f8bd6322661c292f102762693bfc6f53dd49274: (804365:1739:4, 116576) <-> (813122:402:1, 2144)
2023-12-18 07:05:41.324 [DBG] HSWC: Closed completed FAIL circuit for 4cfde2dcf81560e34fbc630c0f8bd6322661c292f102762693bfc6f53dd49274: (804365:1739:4, 116577) <-> (813122:402:1, 2145)
2023-12-18 07:05:57.891 [DBG] HSWC: Closed completed FAIL circuit for c3f1a11dc318ffeb782c12a273f5e63c749bb9a3413647863c248c72bd826cd9: (813122:402:1, 2739) <-> (772528:1223:0, 53954)
2023-12-18 07:06:09.159 [DBG] HSWC: Closed completed FAIL circuit for be8aa55ec34cf492faf61dcd5012f45680710756849cb8df8ac7e86f873c5fad: (803188:1618:1, 76228) <-> (792854:346:1, 192838)
2023-12-18 07:06:26.745 [DBG] HSWC: Closed completed FAIL circuit for bf9f6e4a88ed627a45baf0798e405f1bbbd5c40b7db9c036c50f64230a78a5bc: (769692:1990:0, 138915) <-> (751597:264:1, 81233)
2023-12-18 07:06:54.858 [DBG] HSWC: Closed completed FAIL circuit for 6382222f14c22dda34f558ed41e044663f3f2a7ec3fd995715d087dfa1483028: (678639:1792:0, 26551) <-> (804226:3027:4, 4403)
2023-12-18 07:06:58.665 [DBG] HSWC: Closed completed FAIL circuit for d0a31f9ea2e6bbead552e964462f0355321b4a3cf3f62249ed70ddd75b2857ed: (678639:1792:0, 26552) <-> (769692:1990:0, 69726)
2023-12-18 07:07:11.677 [DBG] HSWC: Closed completed FAIL circuit for b35834206f0dbed22f67692b870c538fc59702c3468d1e651de004a1754c7aeb: (791407:785:0, 4185) <-> (675464:536:0, 150128)
2023-12-18 07:07:16.420 [WRN] HSWC: ChannelLink(fd56119a971856449042e1b158984fabf4d90c796797afb7491bf7b4609f499f:1): outgoing htlc(6382222f14c22dda34f558ed41e044663f3f2a7ec3fd995715d087dfa1483028) has insufficient fee: expected 6855, got 6285
2023-12-18 07:07:18.755 [ERR] CRTR: process network updates got: unable to fetch utxo for chan_id=826035598279835649, chan_point=e06ce89e00347df317f409f63e0d5e9b751401626579972c281544337628b18e:1: target output has been spent
2023-12-18 07:07:18.783 [ERR] CRTR: process network updates got: unable to fetch utxo for chan_id=875731324834152449, chan_point=6bf25989154bd64386e066989c388d4c442f6cbb65cd5ee802786b1ca73adf39:1: target output has been spent
2023-12-18 07:07:18.807 [ERR] CRTR: process network updates got: unable to fetch utxo for chan_id=879452072077361153, chan_point=320198d36ea8607abdbcd86a43ccc81209c8776bf1b574e06b6fde930d0fc33b:1: target output has been spent
2023-12-18 07:07:18.824 [ERR] CRTR: process network updates got: unable to fetch utxo for chan_id=888509849036783617, chan_point=1a7be8f22078a2ea4b3f3edfc16951e704a581903449322bf547e371477d5848:1: target output has been spent
2023-12-18 07:07:24.251 [DBG] HSWC: Closed completed FAIL circuit for 8a0a6502e322c86e2917c6c4055fdd2e90b5300497014e7fbfed56b9d04c03c9: (803188:1618:1, 76229) <-> (792854:346:1, 192839)
2023-12-18 07:07:35.546 [ERR] CRTR: process network updates got: unable to fetch utxo for chan_id=879243164939714561, chan_point=7de0beabe4c653bb100f26143c4d7e1e14aab212a65bb763f204597c69034c22:1: target output has been spent
2023-12-18 07:07:35.563 [ERR] CRTR: process network updates got: unable to fetch utxo for chan_id=887709404516450314, chan_point=be4c22d7bf3f3684f93bb0735f1d316b8717edd803d8dba98f99e03bc19260bf:10: target output has been spent
2023-12-18 07:07:35.652 [ERR] CRTR: process network updates got: unable to fetch utxo for chan_id=890050264672108545, chan_point=e0265f4b2508434f68b9d3aec05a3a066eea759c99e21033152b618e68de08c4:1: target output has been spent
2023-12-18 07:07:35.743 [ERR] CRTR: process network updates got: unable to fetch utxo for chan_id=892844123875180545, chan_point=02629e6c9fdcf897c506501a0f6ff0be6c5714506aa8d0d492ef6d4c93753d66:1: target output has been spent
2023-12-18 07:07:59.662 [DBG] HSWC: Closed completed FAIL circuit for e412da341e23f79c839b1cfbb9615b86dec655541ecc2b6f29fd59b11f268632: (757226:1070:2, 92734) <-> (808309:2941:0, 153100)
2023-12-18 07:08:05.185 [DBG] HSWC: Closed completed FAIL circuit for a36af44a04088b675997af2919160dbf91b03f0d9dffadbe311f24574e61dd8e: (802840:1012:0, 13362) <-> (813122:402:1, 2146)
2023-12-18 07:08:06.614 [ERR] CRTR: process network updates got: unable to fetch utxo for chan_id=892103053011582977, chan_point=d08bbfe0403c0c413604e5fc25962069792ae29ac0541c9db64bbb6fe966f657:1: target output has been spent
2023-12-18 07:08:11.659 [DBG] HSWC: Closed completed FAIL circuit for 8a0a6502e322c86e2917c6c4055fdd2e90b5300497014e7fbfed56b9d04c03c9: (803188:1618:1, 76230) <-> (792854:346:1, 192840)

Any suggestions or explanations?

[microlancer]

I can't figure it out, but reading other explanations it's likely a HTLC timeout issue.

It's quite frustrating as force-close fees are so high. I wonder if there's any way to prevent this.

[bitromortac]

You could increase your fees and min_htlc_msat in order to get compensated more for the risk and make sure to select reliable peers. In case it becomes too risky for you, you can disable channels for routing.

[yyforyongyu]

This outgoing HTLC has timed out, as shown in the following logs,

2023-12-18 06:58:09.552 [INF] CNCT: ChannelArbitrator(5cde0f17ed6081826ab65dd7f4dda194d90313428b2323c2294a03a925ddccb1:1): go to chain for outgoing htlc 4a5c41de120262337dbd262d1c2f9871d4c30d75231f438edba4ebd8171d068e: timeout=821734, blocks_until_expiry=0, broadcast_delta=0

Unfortunately, there's not much you can do if your peer is not cooperative. However, you do have a few options to prevent high fees being paid,

• If you are running bitcoind, at the bottom level you can set --bitcoind.estimatemode=CONSERVATIVE to get a conservative fee estimation.
• Since you are using anchor channels, you can set --max-commit-fee-rate-anchors= to limit the commitment fee rate.
• You can set --sweeper.maxfeerate= to limit the fee rate used when sweeping the HTLCs and anchor outputs.