Summary:
From Unity 2018.2+ you can not use emulator GVRController with TimeScale = 0
It happen only in editor. Build looks ok.

Steps to reproduce the issue:

1. Open HelloVR scene in Unity 2018.2+
2. Unhide GvrControllerMain
3. Set Time Scale to 0
4. Play
5. Hold ALT + SHIFT + mouse move
6. You get this