When paste SSH primary key, missing some char

[SeriaWei]

I use vi editor to paste my ssh primary key on CentOS 7, but i found that one char missing every time.

vi someppk

The primary key like below:

PuTTY-User-Key-File-2: ssh-rsa
Encryption: none
Comment: rsa-key-20180611
Public-Lines: 6
AAAAB3NzaC1yc2EAAAABJQAAAQEApUh8LfTix/QcsfI3eqsiO8QOPTjCf8nYfeUT
wd9uDnyIPgrEad5RnQtCqZeygqgA/ol4nk0snCAabt9qRbC6BB/tJw1e1L+euHmS
1sHSyyjVlfrhL4PXrhVFgoG33pn7QrrwgzxMfGd7XDlZ6Y7Z1nlgZvfe7AKngbLU
RaPHnY3TRP6UsDNuW1P9wWKMrDkQAM3iSu81rNfsIvx2O6/QvzzbB9ht7yS/MuXM
s5/jNh1uDMJmYvNgkaqGQ7UiA9RiSL79uPm5pQhX5/F5QBcT1TukwNKjrY1L5Gns
gF2FX/ekxQ463YYJzrYJXKj/6LcIv421tzIDTDsvisrmHNUcHQ==
Private-Lines: 14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Private-MAC: cfa9a9434bf103fe3611a430c05f21439ec541ad

I try to use shift + insert and the Paste button, but the result is the same, missing the "C"

Source / Paste result

8o8xhFyuFG2dAAAAgQCswmykGgI6zhGUOoFRmkmY4RO4vEmQ1fR34wz7l0ZDA6YK
8o8xhFyuFG2dAAAAgQswmykGgI6zhGUOoFRmkmY4RO4vEmQ1fR34wz7l0ZDA6YK