Hello there.
When someone joins a table and they receive an invitation to join someone else's table, the game allows them to join the second person but doesn't show them as having left the first table.
I don't know why this is but I found the bug on Farkle and don't know if it applies to other games.
Please look into this and fix it if you can.

what bug on farkle? you didn't say.

Yeah it does not tell the user that he has left the table, it tells the other members in the table that he has left the table. but the person who leaves the table is not notified. I thought its not very required though. But not sure what Aminiel thinks