Player's animation loops while frozen
This is something similar to this: http://dev.etlegacy.com/issues/525 I’m pretty sure it has something to do with it.
So how I found out this bug... Simply I did "\freeze" into console. I went into spectators and went through all the players. With my luck I spotted that one reloaded at teh same time I did \freeze which caused the animation loop again every time I switched to this specific player.