Controller Tracking Broken and Frequent Crashing

Hey guys, I am a new VR Developer and am making a game with a punching bag. Everything was working great, however, when I added another scene to the build, everything broke. I was only able to use one controller at a time (and the controller would switch if I interacted with the opposite one), I was no longer able to move well because the joysticks had to be constantly pressed in order to update, and even worse, any time there are any collisions, the entire game crashes. Please help!