When unloading a level containing a decal that is using a dynamic material instance the editor will crash.
Result: The editor crashes when pressing the '1' key to unload the sublevel containing the decal
Expected: The sublevel will be unloaded
Access violation - code c0000005 (first/second chance not available) UE4Editor_Renderer!FTransientDecalRenderData::FTransientDecalRenderData() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\renderer\private\decalrenderingshared.cpp:47] UE4Editor_Renderer!FDecalRendering::BuildVisibleDecalList() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\renderer\private\decalrenderingshared.cpp:234] UE4Editor_Renderer!FRCPassPostProcessDeferredDecals::Process() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\renderer\private\compositionlighting\postprocessdeferreddecals.cpp:731] UE4Editor_Renderer!FRenderingCompositionGraph::RecursivelyProcess() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\renderer\private\postprocess\renderingcompositiongraph.cpp:687] UE4Editor_Renderer!FRenderingCompositePassContext::Process() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\renderer\private\postprocess\renderingcompositiongraph.cpp:219] UE4Editor_Renderer!FCompositionLighting::ProcessBeforeBasePass() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\renderer\private\compositionlighting\compositionlighting.cpp:292] UE4Editor_Renderer!FDeferredShadingSceneRenderer::Render() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\renderer\private\deferredshadingrenderer.cpp:861] UE4Editor_Renderer!RenderViewFamily_RenderThread() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\renderer\private\scenerendering.cpp:1849] UE4Editor_Renderer!TGraphTask<`FRendererModule::BeginRenderingViewFamily'::`26'::EURCMacro_FDrawSceneCommand>::ExecuteTask() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\core\public\async\taskgraphinterfaces.h:784] UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:650] UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:559] UE4Editor_RenderCore!RenderingThreadMain() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:325] UE4Editor_RenderCore!FRenderingThread::Run() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:459] UE4Editor_Core!FRunnableThreadWin::Run() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:76]
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-48587 in the post.
| 8 |
| Component | UE - Graphics Features |
|---|---|
| Affects Versions | 4.17 |
| Target Fix | 4.18 |
| Created | Aug 18, 2017 |
|---|---|
| Resolved | Aug 22, 2017 |
| Updated | Apr 27, 2018 |