Certain 'boss' levels are producing a strange glitch where the players in the party experience varying degrees of loss of control of their characters.

I and some friends have had this occur before; it happened most recently today, during the first of the Jelly King levels.

What happens is the character appears to be moving on their own, or in a contrary direction to what we are actually inputting. I'll be trying to run right to avoid a large group of jellies or a spike trap, and my toon will 'slide' left, against my commands. Our party of three almost stood a chance even with this problem, but for the fact that we'd get pushed into a corner and then surrounded by monsters =P

May just be a problem on certain levels with a lot going on (ie loads of jellies running around, lots of buttons to push, lots of respawning explodey blocks etc).

Also, while on the subject of bugs - every now and then when entering a dungeon, the load screen will freeze indefinitely, requiring a restart. Either it freezes or I just experience a black screen.