Steps to reproduce:
1. Create a new Unity project
2. Create a new Scene
3. Switch platform to UWP and add VR/XR support
4. Build new scene for UWP
5. Open VS solution
6. Build & deploy on HoloLens device

Actual result: player crashes on launch:
Assertion failed on expression: 'f >= (-2147483647 - 1) && f <= 2147483647'

Notes:
Not reproducible on local machine
Not reproducible with Release/Master configurations
Reproducible with both .NET and IL2CPP scripting backends

Reproducible with: 2017.3.0a2, 2017.3.0a3
Not reproducible with: 2017.2.0b6, 2017.3.0a1

Regression introduced in 2017.3.0a2

(output attached)