Got stuck in a re-spawn loop : some collision detection failed in level 4 at the start of a standard 30° incline, the ball fell through, and was re-spawned at t

Got stuck in a re-spawn loop : some collision detection failed in level 4 at the start of a standard 30° incline, the ball fell through, and was re-spawned at the same place resulting in falling again, locking me in loop.