I'm getting a crash using Vuforia when I rapidly create a view using Vuforia and then tear it down.
I have a tab bar view controller and Vuforia is in one of those tab bars. Each time it becomes visible I create Vuforia and each time is disappears I tear it down to reduce my memory footprint. Occasionally I get a crash on an iPhone 4S that causes my app to crash. Its a 'EXC_BAD_ACCESS' crash which normally would not give me much but using KSCrash I have a backtrace. Apparently a notification from AVFoundation causes the crash, the exact diagnosis is 'Attempted to dereference garbage pointer'
Has anyone seen this kind of bug before?
I've attached the crash report.