Unity 5 iOS build crashes in xCode at "ldrb" with "Thread 1: ECX_BAD_ACCESS (code=1, address=0x24)"

Hi I have been searching on this error but the only thing I could find were people who had a null reference exception in their project. I made sure that there is none in my project. When I execute it in Unity there is absolutely no output to the console and no errors. The Project runs just fine on Windows, Mac and Android but I cannot build it on any iPhone or iPad. The project is really nothing complicated and I have no idea what could cause this. Any help or hint is highly appreciated. Thanks.