There seems to be a bug concerning some doors, specifically during special events like Wicked Eyes and Wicked Hearts and Champions of the Just (so far). During the missions many of the doors can display two destinations depending on facing. One destination is wherever the door is supposed to lead (such as the vestibule if you are in the grand ballroom) and the other is the area you are already in. It can be very easy, and frustrating, to run up to a door and activate it only to be faced with a very long loading screen and end up in the same place you were when you activated the door.
If you activate the door when the destination of the area you are in is listed there is a longer than normal loading screen which sometimes hangs in the loading sequence (with the areas background music playing normally and the loading icon animated), I have left this for as 5 minutes with the game failing to load.
