I have chipmunk 5.3.4, spacemanager 0.0.6 and cocos2d 0.99.5 so it's the latest.
Plus i didnt mean anything about collisions in my other post i mean that the scheduled method interrupts (the word i was looking for) the memory freeing methods.
I will try to solve it by unscheduling those methods today when i get back home.
Thanks!