IOS 12 broke my project

Project runs fine on IOS 11 devices, but crashes right after the UE4 Splash screen.

Blank projects still work fine on iOS 12, so there’s something in the project itself that doesn’t play nice with iOS 12.

Does anyone have any advice how I should proceed? I’m currently slowly adding assets back to a blank project and launch to device to see which of them will eventually cause the error. It is a very large project so, if unlucky, this method will take weeks to isolate what’s causing my project to fail with iOS 12. There seems to be others suffering with this problem as well.