Unreal Engine Issues and Bug Tracker (UE-38481)

Description

I ran the command with no actual changes to shaders.

Recompileshaders global and changed did not crash the editor.

Steps to Reproduce

Open UE4Editor on any project. (I used QAGame)
Right click in the perspective viewport and select "Play from here"
Open a console command window by pressing ~
Enter "Recompileshaders All"

Actual Results: After a little bit of time editor will crash with an Assert.
Expected Results: Shaders are recompiled without editor crashing.

Callstack

[2016.11.10-17.52.53:345][921]LogWindows:Error: === Critical error: ===
[2016.11.10-17.52.53:345][921]LogWindows:Error: 
[2016.11.10-17.52.53:345][921]LogWindows:Error: Fatal error: [File:D:\_Workspaces\curtis.zuehls_4.14_Release\Engine\Source\Runtime\RenderCore\Private\RenderingThread.cpp] [Line: 791] 
[2016.11.10-17.52.53:345][921]LogWindows:Error: Rendering thread exception:
[2016.11.10-17.52.53:345][921]LogWindows:Error: Assertion failed: !Material->IsDefaultMaterial() [File:D:\_Workspaces\curtis.zuehls_4.14_Release\Engine\Source\Runtime\Engine\Private\Materials\Material.cpp] [Line: 198] 
[2016.11.10-17.52.53:345][921]LogWindows:Error: 
[2016.11.10-17.52.53:345][921]LogWindows:Error: 
[2016.11.10-17.52.53:345][921]LogWindows:Error: 
[2016.11.10-17.52.53:345][921]LogWindows:Error: KERNELBASE.dll
[2016.11.10-17.52.53:345][921]LogWindows:Error: UE4Editor-Core.dll!FOutputDeviceWindowsError::Serialize() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:103]
[2016.11.10-17.52.53:346][921]LogWindows:Error: UE4Editor-Core.dll!FOutputDevice::Logf__VA() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\core\private\misc\outputdevice.cpp:68]
[2016.11.10-17.52.53:346][921]LogWindows:Error: UE4Editor-Core.dll!FDebug::AssertFailed() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\core\private\misc\assertionmacros.cpp:332]
[2016.11.10-17.52.53:346][921]LogWindows:Error: UE4Editor-Engine.dll!FDefaultMaterialInstance::GetMaterial() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\engine\private\materials\material.cpp:200]
[2016.11.10-17.52.53:346][921]LogWindows:Error: UE4Editor-Renderer.dll!FShadowDepthDrawingPolicyFactory::AddStaticMesh() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\renderer\private\shadowdepthrendering.cpp:919]
[2016.11.10-17.52.53:346][921]LogWindows:Error: UE4Editor-Renderer.dll!FStaticMesh::AddToDrawLists() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\renderer\private\scenecore.cpp:315]
[2016.11.10-17.52.53:347][921]LogWindows:Error: UE4Editor-Renderer.dll!FPrimitiveSceneInfo::AddStaticMeshes() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\renderer\private\primitivesceneinfo.cpp:146]
[2016.11.10-17.52.53:347][921]LogWindows:Error: UE4Editor-Renderer.dll!FPrimitiveSceneInfo::AddToScene() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\renderer\private\primitivesceneinfo.cpp:189]
[2016.11.10-17.52.53:347][921]LogWindows:Error: UE4Editor-Renderer.dll!FScene::AddPrimitiveSceneInfo_RenderThread() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\renderer\private\rendererscene.cpp:467]
[2016.11.10-17.52.53:347][921]LogWindows:Error: UE4Editor-Renderer.dll!`FScene::AddPrimitive'::`2'::EURCMacro_FAddPrimitiveCommand::DoTask() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\renderer\private\rendererscene.cpp:705]
[2016.11.10-17.52.53:347][921]LogWindows:Error: UE4Editor-Renderer.dll!TGraphTask<`FScene::AddPrimitive'::`2'::EURCMacro_FAddPrimitiveCommand>::ExecuteTask() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\core\public\async\taskgraphinterfaces.h:868]
[2016.11.10-17.52.53:348][921]LogWindows:Error: UE4Editor-Core.dll!FNamedTaskThread::ProcessTasksNamedThread() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\core\private\async\taskgraph.cpp:932]
[2016.11.10-17.52.53:348][921]LogWindows:Error: UE4Editor-Core.dll!FNamedTaskThread::ProcessTasksUntilQuit() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\core\private\async\taskgraph.cpp:679]
[2016.11.10-17.52.53:348][921]LogWindows:Error: UE4Editor-RenderCore.dll!RenderingThreadMain() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\rendercore\private\renderingthread.cpp:320]
[2016.11.10-17.52.53:348][921]LogWindows:Error: UE4Editor-RenderCore.dll!FRenderingThread::Run() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\rendercore\private\renderingthread.cpp:454]
[2016.11.10-17.52.53:348][921]LogWindows:Error: UE4Editor-Core.dll!FRunnableThreadWin::Run() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:74]
[2016.11.10-17.52.53:348][921]LogWindows:Error: UE4Editor-Core.dll!FRunnableThreadWin::GuardedRun() [d:\_workspaces\curtis.zuehls_4.14_release\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:31]
[2016.11.10-17.52.53:348][921]LogWindows:Error: kernel32.dll
[2016.11.10-17.52.53:349][921]LogWindows:Error: ntdll.dll
[2016.11.10-17.52.53:349][921]LogWindows:Error: ntdll.dll

Community References

Recompileshaders all causes crash/assert failure

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Fixed

Component	UE - Graphics Features
Affects Versions	4.14
Target Fix	4.15

Fix Commit	3206551
Main Commit	3219854

Created	Nov 10, 2016
Resolved	Nov 21, 2016
Updated	Apr 27, 2018

UE-38481

Using "RecompileShaders All" while PIE crashes editor with an assert.

Using "RecompileShaders All" while PIE crashes editor with an assert.

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