Why am I crashing after MKMapView is freed if I'm no longer using it?

Question

I have a MKMapView. Sometimes after my view controller is dismissed, I\'ll get a EXC_BAD_ACCESS.

I turned on NSSZombies and it

Answer 1

The problem, in my case, was that first time I launched app I don't press "allow" when prompting for location authorization (accidentally!!).

Uninstalling app and re-installing it, when prompt appear I allow the authorizations and no more crash!