I don't know just what happened, but it didn't quite fit the symptoms of your synchronization bug so I thought I'd post it.
Had a lot of very strange effects.
Stole a lobotimizer from the opponent, he played a new one, I couldn't steal it. It wasn't protected or anything--I could steal my own, but no target on his.
I had made a monster invulnerable, he was hitting it with lightning (that sounds like synchronization problem).
Various problems with what the Otugh could and couldn't eat. Couldn't eat quite a few things that were not invlunerable.
Just thought I'd mention it. Game was sat between 7 and 7:20, and was with Pascal