I don't know if it is a bug, but using the new Quick Game mode (15+15) i got paired with a player who already plays another 10+0 game. Of course he did not start the game, so i had to abort it. Is this a normal behaviour?
This just happened to me too: en.lichess.org/YIDomqjMlPYE (I could see from hovering over his name that he was in a different game that was already well underway when ours started)
The game was aborted after he didn't move for a few minutes. My guess is he never even knew the game existed until after.