Melee And Powers Locked

[Z3brim]

These past couple days when I've played my volt on missions the melee and powers were locked up at some random point in the mission and I couldn't use them. When I tried to use a power the dispay just said that a power was in use, and at the time I couldn't. The same thing went for the melee, after the powers were locked up the melee just didn't work. Once before the problem was fixed when my charater died and I used a revive to bring him back. I use a Xbox 360 controller to play the game.