Unity 5.3.1 networking (UNET) completely broken on iOS

Hi,
I recently updated to Unity 5.3.1 and ran my mobile game on my iPhone 6 plus. When I tried to create or join a match, the app crashed after half a second, before even loading the map. This doesn't happen in the editor, only on iOS.

This completely ruins multiplayer for my game. In 5.3 we had the 15 syncvars error, and now in 5.3.1 it completely doesn't work on iOS.

Please fix this ASAP, this completely ruins my game that I am trying to release...

Thanks