Infernalist Demon form causing insta crash

I just finished the 2nd ascendancy trial and put the points in to gain the demon form. I had the hell hound from my first two points.
As soon as i zone into act 2 in cruelity Halane bridge, i switched to demon form to try it out.
the game instantly crash to xbox home screen. i tried restarting my console and waited 10 mins. log back in and get the game on pause. was able to port back to the caravan from the map screen but game keeps crashing and will not load the caravan town.
Help please.