Debug.log is here https://paste.ee/p/ljl21
TLDR; When one of us try to connect to the server while the other one is in, either the person that is is gets kicked out, or the one who is trying to login gets connected (in the server) but u dont even see it in the client as u are instantly disconnected.
The error that appears in the screen is as follows: Internal Exception: java.lang.IndexOutOfBoundsException: readerIndex(23) + length*8( exceeds writerIndex(23): PooledUnsafeDirectByteBuf(ridx: 23, widx: 23, cap: 23).
We have been trying to fix this the past 4 days with no avail. Every "fix" we found to problems similar to ours didnt work.
Ty in advance.