This seems really weird. I've doublechecked everything but this issue does not happen to me at all, although I've might heard about it once.
Alright, thanks for the note, I'll look into it.
Actually, do you know what constant change broke it?
Weird, can't quite find out what might have caused this issue. Are you using windows?
It seems the combat glitch happens if you have "use animation on screen change" turned off. For now, keep it on and you can play normally.