Autoban at Cube PQ boss

Describe the problem. Be as specific as possible!:
My friend was at Cube PQ (lvl60) Boss stage with me and my other friend. We ran out of time during boss. While me and my other friend respawned at yellow cube, my friend d/c:d. He tried to log in and he had been banned till year 2051

It was just visual error luckily, because he managed to still log in. I'm not sure if logging to his another account solved the issue.

 Images of problem

Guess this proves that 2012 is a bluff then.
The autoban has beeing running hammercock lately. I was also banned after the boss died but relogging immediately after proved no trouble.