Hello

Interesting. The app is properly launched as far as I can tell, because you get the engine initialization messages.

If it was killed by iOS, or if it was a crash, you'd get a stack trace in the logs. And if it was a "own will" exit, you'd get a closing message. As you seem to be getting none of these I'm unable to tell what's happening.

You might get more information about this crash by turning on the display of the iOS system logs (requires a USB cable). With adequate filtering/highlighting, I'm confident you'll get clues there.