I have a VR build that works fine in HTC Vive, but when testing with (which requires SteamVR for Mixed Reality), the build keeps crashing with the following error:
Fatal error: [File:D:\Build++UE4+Release-4.19+Compile\Sync\Engine\Source\Runtime\RenderCore\Private\RenderingThread.cpp] [Line: 1107]
GameThread timed out waiting for RenderThread after 30.00 secs