All iOS projects made with IL2CPP and Engine Code Stripping crash on startup in UpdateAllSkinnedMeshes().

Steps to reproduce:
1) Create/open any project.
2) Build for iOS with IL2CPP and Engine Code Stripping enabled (default settings).
3) Run on a device.

The app crashes in UpdateAllSkinnedMeshes() before the splash screen appears. This does not occur when Engine Code Stripping is disabled and with Mono2x API. Doesn't reproduce on Android devices under the same circumstances.

Reproduced on:
5.6.0b5

Did not reproduce:
5.6.0b4, 5.5.0p4

Devices tested:
iPhone 5 iOS 9.3.5
iPhone 7 iOS 10.2.1
LG Nexus 5 Android 6.0.1