Unreal Engine Issues and Bug Tracker (UE-40534)

Description

If the user unhooks their Oculus HMD (USB cable) from the PC while a level is loading the editor will crash

Steps to Reproduce

Make sure that the oculus is hooked up and turned on
Download the attached project
Open the project
Position your body in such away that the USB cable for the Oculus HMD will be easily accessible
Place One hand on the USB cable
Place the other so that it blocks the senser and thinks that you are waring the headset
Play In VR Mode
Wait for the screen to go black (May take sever seconds, the level is set to reload every 10 seconds but may take longer due to lag)
When screen goes black, remove the USB cable from the PC
Notice that the editor will crash

Expected: VR preview would shut down and return the user to the editor
Result: The editor crashes

Callstack

UE4Editor_D3D11RHI!FD3D11DynamicRHI::RHIClearColorTextures() d3d11commands.cpp:1754 
UE4Editor_D3D11RHI!FD3D11DynamicRHI::RHIClearColorTexture() d3d11commands.cpp:1736 
UE4Editor_Renderer!FRCPassPostProcessTonemap::Process() postprocesstonemap.cpp:1314 
UE4Editor_Renderer!FRenderingCompositionGraph::RecursivelyProcess() renderingcompositiongraph.cpp:656 
UE4Editor_Renderer!FRenderingCompositePassContext::Process() renderingcompositiongraph.cpp:211 
UE4Editor_Renderer!FPostProcessing::Process() postprocessing.cpp:1938 
UE4Editor_Renderer!FDeferredShadingSceneRenderer::Render() deferredshadingrenderer.cpp:1251 
UE4Editor_Renderer!RenderViewFamily_RenderThread() scenerendering.cpp:1649 
UE4Editor_Renderer!TGraphTask<`FRendererModule::BeginRenderingViewFamily'::`21'::EURCMacro_FDrawSceneCommand>::ExecuteTask() taskgraphinterfaces.h:868 
UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() taskgraph.cpp:932 
UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() taskgraph.cpp:679 
UE4Editor_RenderCore!RenderingThreadMain() renderingthread.cpp:320 
UE4Editor_RenderCore!FRenderingThread::Run() renderingthread.cpp:454 
UE4Editor_Core!FRunnableThreadWin::Run() windowsrunnablethread.cpp:74

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Won't Fix

Component	UE - Platform - XR
Affects Versions	4.14.3
Target Fix	4.16

Created	Jan 12, 2017
Resolved	Apr 10, 2017
Updated	Sep 16, 2019

UE-40534

Crash when unplugging the Oculus Rift HMD while level is loading

Crash when unplugging the Oculus Rift HMD while level is loading

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