Steps to reproduce:
1. Open the attached project
2. Open the main.unity scene
3. Switch platform to Windows Store
4. Build for WSA Universal 10 SDK
5. Open Visual Studio solution
6. Deploy on Remote Machine (Hololens)
7. Loose tracking state by occupying the sensors for a few times
8. Observe, the gaze pointer will at some point not collide with some parts of spatial mesh since their colliders are inactive

Actual results: Spatial Mesh Collider does collide with a gaze pointer after tracking state lost
Expected results: Spatial Mesh Collider should collide normally

Note:
With 2018.1.0b1 I get "HLWM: Reading and writing a shared object on multiple threads simultaneously is not threadsafe!"

Reproduced with: 5.6.4p4, 2017.1.2.p4, 2017.2.1p2, 2017.3.0f3, 2018.1.0b1