chris rambo

So when I unleash my ultimate sometimes it does go off I will have a full red bar and I'm pressing the button to release it and it doesn't work at times so I'll lose the match. It's not fair. I've went through 5 controller no matter what it doesn't work. I also will use chase at times and not work it's a good game but if all I can do is be competitive against other people and my button layout not work its pointless.