Cap is here. So I tried applying physics with bounding box to the TiledBackgrounds, collisions were horribly messed up. Okay, I thought, guess tiledbackground doesn't like to play along with physics, I'll make a foreach loop to put a physics enabled Sprite over each tiledbackground to handle collision, result: Collisions are EVEN MORE fucked up!
version is 0.99.84, doesn't work in latest stable either. I'm sure I'm doing something really stupid but for the life of me I can't figure out what so someone please help pretty please