Unreal Engine Issues

UE-31594

VR Preview Crash when using split screen

VR Preview Crash when using split screen

Developer Notes

This issue has been closed as 'Won't Fix' due to an extended period of time without updates. If this issue is important to you please let us know by posting on the AnswerHub or UDN, and Epic will re-open the ticket for further review.

Questions & Answers
Description

If the user tries to use split screen in the editor along with VR preview, the editor will crash

Steps to Reproduce
  1. Make sure that the oculus is hooked up and turned on
  2. Open the editor
  3. Open the level blueprint
  4. Call Create player on begin play
  5. Save
  6. Play in VR preview
  7. Notice that the editor crashes

Expected: One of the players would have VR
Result: The editor crashes

Callstack
MachineId:EA8CDCD54E3691A62F8838A5364B34C6
EpicAccountId:6003a092eb5e4d259eb50cf2c6e341d2

Assertion failed: Family->Views.Num() == 2 [File:D:\Build\++UE4+Release-4.12+Compile\Sync\Engine\Source\Runtime\Renderer\Private\SceneRendering.cpp] [Line: 1046] 



UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\core\private\misc\outputdevice.cpp:440]
UE4Editor_Renderer!FViewInfo::CreateUniformBuffer() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\renderer\private\scenerendering.cpp:1047]
UE4Editor_Renderer!FViewInfo::InitRHIResources() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\renderer\private\scenerendering.cpp:1230]
UE4Editor_Renderer!FDeferredShadingSceneRenderer::InitViews() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\renderer\private\scenevisibility.cpp:2832]
UE4Editor_Renderer!FDeferredShadingSceneRenderer::Render() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\renderer\private\deferredshadingrenderer.cpp:870]
UE4Editor_Renderer!RenderViewFamily_RenderThread() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\renderer\private\scenerendering.cpp:1933]
UE4Editor_Renderer!TGraphTask<`FRendererModule::BeginRenderingViewFamily'::`25'::EURCMacro_FDrawSceneCommand>::ExecuteTask() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\core\public\async\taskgraphinterfaces.h:999]
UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:932]
UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:679]
UE4Editor_RenderCore!RenderingThreadMain() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:319]
UE4Editor_RenderCore!FRenderingThread::Run() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:440]
UE4Editor_Core!FRunnableThreadWin::Run() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:74]

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Won't Fix
ComponentUE - Platform - XR
Affects Versions4.12
CreatedJun 3, 2016
ResolvedApr 3, 2017
UpdatedSep 16, 2019
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