[BUG] Memory Leak if ADB Android is locked

[gamestailer94]

Describe the bug
I use an old Android as the Screen, as described here via USB(ADB).
When I lock the Android Phone, (because I go to bed) Klipper Screen starts using more and more memory, at about 1 MB / min.
It stops if I unlock the phone and some memory gets freed, but not all. (110MB before unlock, after unlock 91MB, normal is 68MB)
I did only test it while a print was running.

I created a memory usage log, using this script

Android used, if relevant:
Samsung Galaxy Note Edge (SM-N915FY)
Android 8.1.0

To Reproduce
Connect Android as a Screen via USB ADB
Start monitoring the memory of klipper screen python script
Lock the Phone
Memory usage of script starts to increase

Expected behavior
To not use more memory

Logfile
memory_usage.log
KlipperScreen.log