In the middle of a game with buzzboxxuk, played a shot in UK on a red into the top right corner and the 'roll down' animation kind of got stuck on repeat (it's sitting there rattling in the pocket rather than disappearing) and the game's frozen because of it...thought it'd be worth mentioning.

EDIT: It also stopped me from leaving the game and changing rooms, we both had to log out in order to solve it.