I have been playing D1 with my son and every time I play, I am unable to ever get my super abilities. I can use grenades and my hunter knife but no matter how long I play i cannot get any super abilities. I am a level 40 and didn't have issues in the past but I've noticed it the last 2 or 3 times I have played over the last month or so. I've even checked everything on my character. Anyone have any suggestions?