April 2015
After fighting mutant Orsino, I left the room and in the next was attacked by a bunch of shades. After disposing of them in a right heroic manner, I leveled. I hit START and selected Level Up.
My screen has turned mostly black. There is a hint of red in the upper left corner and some vague suggestions of circles. The music continues to play. If I hit the center Xbox button, I hear the sound of the Xbox menu box, but see nothing.
I am playing as a Mage, if that matters, and sided with the mages. I have searched the web, but all the black screen bugs I found were about Inquisition, and I am simply playing DA2.
April 2015
On restating, it was fine, though it was a bit buggy till the end of the game.