I have been using the Collaborative Viewer project template for over a year now to setup 3D design reviews, mix of VR and flat screen participants. I have been using Steam VR and the Index for most of this, but we are switching to the HP Reverb G2 due to cost and ease of setup (AKA no base stations). I’m using the WMR plugin and trying to avoid setting up Steam on these VR PC kits I’m building. Things start out fine and work in VR but when I switch back to any other navigation mode (Fly, Walk, Orbit) I can see the Pawn camera switch and then a second later the game exits. I do not get this behavior with Steam VR. Log file with comments below.
UE 4.26.1
Windows 10 20H2
RTX 2070
[2021.03.12-18.06.04:281][208]LogMotionControllerComponent: Warning: Failed to create a display component for the MotionController - no XR system (if there were any) had a model for the specified source ('Left')
[2021.03.12-18.06.04:282][208]LogSlate: New Slate User Created. User Index 8, Is Virtual User: 1
[2021.03.12-18.06.04:282][208]LogSlate: Slate User Registered. User Index 8, Is Virtual User: 1
[2021.03.12-18.06.04:282][208]LogMotionControllerComponent: Warning: Failed to create a display component for the MotionController - no XR system (if there were any) had a model for the specified source ('Left')
[2021.03.12-18.06.04:502][208]LogHMD: SetSpectatorScreenMode(5).
//
//Switch to VR pawn button pressed
//
[2021.03.12-18.06.04:502][208]LogBlueprintUserMessages: [VRButton] VR
[2021.03.12-18.06.04:512][208]LogHMD: Warning: Swapchain format not supported (24), falling back to runtime preferred format (29).
[2021.03.12-18.06.04:529][209]LogRenderer: Warning: Resizing VR buffer to 4952 by 2428
[2021.03.12-18.06.04:529][209]LogRenderer: Reallocating scene render targets to support 4952x2428 Format 10 NumSamples 1 (Frame:1376).
[2021.03.12-18.06.04:607][210]LogProfilingDebugging: Allocated a 1024 x 1024 texture for HMD canvas layer
//
//Switch to walk pawn button pressed
//
[2021.03.12-18.06.11:410][360]LogBlueprintUserMessages: [WalkButton] WALK
[2021.03.12-18.06.11:469][361]LogRenderer: Reallocating scene render targets to support 1536x864 Format 10 NumSamples 1 (Frame:1528).
//
// Exit requested? But why?
//
[2021.03.12-18.06.11:476][361]LogWindows: FPlatformMisc::RequestExit(0)
[2021.03.12-18.06.11:476][361]LogCore: Engine exit requested (reason: Win RequestExit)
[2021.03.12-18.06.11:512][362]LogCore: Engine exit requested (reason: EngineExit() was called; note: exit was already requested)
[2021.03.12-18.06.11:512][362]LogInit: Display: PreExit Game.
[2021.03.12-18.06.11:544][362]LogWorld: BeginTearingDown for /Game/CollaborativeViewer/Maps/ReviewRoom_P
[2021.03.12-18.06.11:544][362]LogNet: World NetDriver shutdown IpNetDriver_2147482501 [GameNetDriver]
[2021.03.12-18.06.11:544][362]LogNet: DestroyNamedNetDriver IpNetDriver_2147482501 [GameNetDriver]
[2021.03.12-18.06.11:545][362]LogExit: GameNetDriver IpNetDriver_2147482501 shut down
[2021.03.12-18.06.11:545][362]LogWorld: UWorld::CleanupWorld for ReviewRoom_P, bSessionEnded=true, bCleanupResources=true
[2021.03.12-18.06.11:548][362]LogSlate: InvalidateAllWidgets triggered. All widgets were invalidated
[2021.03.12-18.06.12:479][362]LogAudio: Display: Beginning Audio Device Manager Shutdown (Module: AudioMixerXAudio2)...
[2021.03.12-18.06.12:479][362]LogAudio: Display: Destroying 1 Remaining Audio Device(s)...
[2021.03.12-18.06.12:479][362]LogAudio: Display: Audio Device unregistered from world 'ReviewRoom_P'.
[2021.03.12-18.06.12:480][362]LogAudioMixer: FMixerPlatformXAudio2::StopAudioStream() called
[2021.03.12-18.06.12:480][362]LogAudioMixer: FMixerPlatformXAudio2::StopAudioStream() called
[2021.03.12-18.06.12:485][362]LogAudio: Display: Audio Device Manager Shutdown
[2021.03.12-18.06.12:485][362]LogSlate: Request Window 'DesignReview_V3 (64-bit Development PCD3D_SM5) ' being destroyed
[2021.03.12-18.06.12:490][362]LogSlate: Window 'DesignReview_V3 (64-bit Development PCD3D_SM5) ' being destroyed
[2021.03.12-18.06.12:491][362]LogWindowsTextInputMethodSystem: Display: IME system deactivated.
[2021.03.12-18.06.12:497][362]LogExit: Preparing to exit.
[2021.03.12-18.06.12:497][362]LogMoviePlayer: Shutting down movie player