Not critical at all, but.. Everyone knows about the bug with the "card changed" message. But I have just gotten something new. The enemy's portrait and health just disappear. The fun stuff is, sometimes it carries in from one game into another. The bot seems to handle it fine, though.
Yeah, bot does invoke a hell of a lot of interface issues, including cards being sideways (Although, that seems to have been patched in the last update), cards in your hand not appearing, random elements of the UI showing when they're not meant to, or, not showing when they're meant to, etc... Most annoying one is the hand disappearing, as, due to it's beta logic, I like to watch the bot on my second screen, but, it becomes hard to watch it when only two of your five cards are actually showing in the UI.