I have found two bugs:
1) When you have your inventory open and press the Escape key, it closes the mini map and the inventory. This doesn't happen when pressing ESC to get to the game menu and pressing ESC again to make the menu go away; the mini map will stay active.
2) You can't cast SYMPHONY OF DESTRUCTION when Grim Presence is active, the skill does not state that this should be normal (unlike Tainted Blood which now states it can't work with Grim Presence)