I've been using chipmunk in conjunction with cocos2d for about a month now, and i decided to upgrade to v5 because of the begin and seperate collision handlers etc, from what ive used and seen, its a huge improvement!

i rewrote my collisionhandlers and ran my program with 1 enemy sprite, everything worked fine, collisions did as they were sposed too..
as soon as i add any more sprites into my game i get this error
Assertion failed: (value), function k_scalar, file /User/Documents/Games/platforms/libs/Chipmunk/src/include/chipmunk/constraints/util.h, line 72.
I'm not entirely sure where im going wrong, but i believe its being caused as i add more objects to the "gameSpace"?
I'll be happy to post code if you need to see it.
My enemy sprites are a subclass of CCSprite (cocos) which have an init function that sets up there cpShape/body thing.
The error happens regardless of wether i add the objects as children to my scene, so im guessing it must be happening as they are added into chipmunks space.