I was the server admin of the server that had this problem (twice). Server side, the server stopped responding to input (could not stop it with 'stop' command) and repeatedly gave "Username logged in with UUID X" messages, slowly, with the counter increasing each time.
I was the server admin of the server that had this problem (twice). Server side, the server stopped responding to input (could not stop it with 'stop' command) and repeatedly gave "Username logged in with UUID X" messages, slowly, with the counter increasing each time.