My sovereign's hit points were changing randomly in my game for no apparent reason. It started at 10 and went up to a high of 25 and then down to 10 and then up 18 or something.
In one of my tactical combats all of a sudden no one had any action points remaining and I couldn't do anything except auto resolve.
My hotkeys some times do no work. Enter does not always end the turn. I've never been able to get the spacebar to skip a unit's turn in tactical combat.