Description

After converting from 4.7.6 to 4.9.1 specific maps won't open and will crash the editor with a D3D11 error. This has been reported by multiple users but has not been reproduced internally.

CrashReporter:
[Link Removed]

Google Drive project link:
[Link Removed]

Steps to Reproduce

1. Download project from Link in description (this project was created in 4.7.6 and converted to 4.9.1)
2. After project opens go to Maps/Viking_Campaign folder in content browser
3. Double click on 1st_Quest_Part_Four map

Result:
Editor crashes while trying to open the level

Callstack
MachineId:9FA88CA44B7C623122B0039D6C8BA1B0
EpicAccountId:c807849e05a0413d99e379f2802cae9c

Access violation - code c0000005 (first/second chance not available)

""

UE4Editor_D3D11RHI!FD3D11DynamicRHI::RHISetStreamSource() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\windows\d3d11rhi\private\d3d11commands.cpp:107]
UE4Editor_ShaderCore!FVertexFactory::Set() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\shadercore\private\vertexfactory.cpp:177]
UE4Editor_Renderer!TBasePassDrawingPolicy<TLightMapPolicy<1> >::SetSharedState() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\renderer\private\basepassrendering.h:586]
UE4Editor_Renderer!TStaticMeshDrawList<TBasePassDrawingPolicy<TLightMapPolicy<1> > >::DrawElement() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\renderer\private\staticmeshdrawlist.inl:86]
UE4Editor_Renderer!TStaticMeshDrawList<TBasePassDrawingPolicy<TLightMapPolicy<1> > >::DrawVisibleInner() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\renderer\private\staticmeshdrawlist.inl:279]
UE4Editor_Renderer!FDeferredShadingSceneRenderer::RenderBasePassStaticDataDefault() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\renderer\private\deferredshadingrenderer.cpp:245]
UE4Editor_Renderer!FDeferredShadingSceneRenderer::RenderBasePassStaticData() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\renderer\private\deferredshadingrenderer.cpp:381]
UE4Editor_Renderer!FDeferredShadingSceneRenderer::RenderBasePassView() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\renderer\private\deferredshadingrenderer.cpp:588]
UE4Editor_Renderer!FDeferredShadingSceneRenderer::RenderBasePass() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\renderer\private\deferredshadingrenderer.cpp:1632]
UE4Editor_Renderer!FDeferredShadingSceneRenderer::Render() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\renderer\private\deferredshadingrenderer.cpp:1022]
UE4Editor_Renderer!CaptureSceneToScratchCubemap() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\renderer\private\reflectionenvironmentcapture.cpp:712]
UE4Editor_Renderer!TGraphTask<`CaptureSceneIntoScratchCubemap'::`26'::EURCMacro_CaptureCommand>::ExecuteTask() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\public\async\taskgraphinterfaces.h:779]
UE4Editor_Core!FTaskThread::ProcessTasks() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\private\async\taskgraph.cpp:539]
UE4Editor_Core!FTaskThread::ProcessTasksUntilQuit() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\private\async\taskgraph.cpp:340]
UE4Editor_RenderCore!RenderingThreadMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\rendercore\private\renderingthread.cpp:310]
UE4Editor_RenderCore!FRenderingThread::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\rendercore\private\renderingthread.cpp:411]
UE4Editor_Core!FRunnableThreadWin::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:74]

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Cannot Reproduce
ComponentRendering
Affects Versions4.9.1
CreatedSep 23, 2015
ResolvedJul 27, 2016
UpdatedApr 27, 2018