Help with XCode iOS GameCenter EXC_BAD_ACCESS crash bug

I’m running into a crash bug when attempting to play my game on an iPhone. This one has me totally stumped. Any help would be really appreciated!
Here is what I know:

  • Details: iOS 9, XCode 7, Unity 5.2.0f3
  • The crash does not happen when running the game in Unity.
  • The crash only happens when I instantiate GameCenter [Social.localUser.Authenticate (ProcessAuthentication);]
  • When I comment out this line of code the game runs fine.
  • This is a new version of an already released iOS game.

This is a bug in 5.2.0f3 and will be updated in the next 5.2 patch.

see here: http://forum.unity3d.com/threads/crash-bug-xcode-ios-gamecenter-exc_bad_access.355945/#post-2311918