cocos2D deallocing CCScheduler

Question

This problem started happening when I subclassed CCSprite (Entity) to recieve touch input. When I'm going away from the main scene by pushing to another, I make all Entities remove their delegation from the shared CCTouchDispatcher (ie onExit()). And then reactivate when the main scene returns (onEnterTransistionFinished()).

Half of the times this works fine. However, the other times this happens:

cocos2d: deallocing <CCScheduler: 0x2323a0>

Which I find rather strange. Is it even plausible that the Touch Delegates are the cause of the problem? Or is it perhaps memory-related?