Projectile gets stuck to wall!

So… I have another problem… I am trying to make a breakout game and i made an arena, but the ball gets stuck to the side walls of it, even though it bounces off my pawn and the rear and front walls of the arena. Physics aren’t enabled because it messes up my ball movement. I had a series of other problems like the ball not recognizing my pawns collision but i set a branch to this to false (not hit) and it works OK… I hope somebody knows how to solve this problem with the walls. Thanks!