Game only crashes on iOS no error messages in xCode except debugger-agent: Unable to listen on 8

Unity Engine
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1

I’m using unity 5 and newest xCode and I’m having an issue where when I load a level from a uGUI button press the game exits. The only thing xCode says is debugger-agent: Unable to listen on 8.
Anyone seen this or know where to look?

2

Could you please submit a bug with your project attached and post the bug number here? We may able to fix it.

3

Having the same issue with Unity 4.6.5f1 and XCode 6.3.1 when trying to load an interstitial ad from Chartboost. The app crashes and all XCode shows is this:

debugger-agent: Unable to listen on 8