Sometimes, usually after playing for an hour or more, some functions in the game's UI stop working. "Convert to Imperial style" stops working. Spending skill points stops working. Most noticeable is that the Escape key stops responding, so alt-tabbing and closing the game through the task manager is the only way to log out.

Restarting the game fixes the issue, but it seems to pop up again after any lengthy play session. It's odd, since combat still works fine, as does talking to NPCs. Just a few things... break without much cause so far as I can tell. Anyone else getting this, or know of a possible cause?

Thanks for reading