Description

This is a common and longstanding crash that has occurred since at least 4.11. However users have not provided any descriptions of their actions when the crash occurred.

Source Context

 107       /**
  108        * Either creates a new instance of this type or returns an equivalent existing shader.
  109        * @param Material - The material to link the shader with.
  110        * @param CurrentJob - Compile job that was enqueued by BeginCompileShader.
  111        */
  112       FShader* FMeshMaterialShaderType::FinishCompileShader(
  113       	const FUniformExpressionSet& UniformExpressionSet, 
  114       	const FSHAHash& MaterialShaderMapHash,
  115       	const FShaderCompileJob& CurrentJob,
  116       	const FShaderPipelineType* ShaderPipelineType,
  117       	const FString& InDebugDescription)
  118       {
  119       	check(CurrentJob.bSucceeded);
  120 ***** 	check(CurrentJob.VFType);
  121       
  122       	FShaderType* SpecificType = CurrentJob.ShaderType->LimitShaderResourceToThisType() ? CurrentJob.ShaderType : NULL;
Steps to Reproduce

repro steps currently unknown

Callstack
Assertion failed: CurrentJob.bSucceeded [File:D:\Build\++UE4+Release-4.18+Compile\Sync\Engine\Source\Runtime\Engine\Private\Materials\MeshMaterialShader.cpp] [Line: 120]

UE4Editor_Engine!FMeshMaterialShaderType::FinishCompileShader() [meshmaterialshader.cpp:121]
UE4Editor_Engine!FMaterialShaderMap::ProcessCompilationResultsForSingleJob() [materialshader.cpp:1444]
UE4Editor_Engine!FMaterialShaderMap::ProcessCompilationResults() [materialshader.cpp:1506]
UE4Editor_Engine!FShaderCompilingManager::ProcessCompiledShaderMaps() [shadercompiler.cpp:1788]
UE4Editor_Engine!FShaderCompilingManager::ProcessAsyncResults() [shadercompiler.cpp:2391]
UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3315]
UE4Editor!GuardedMain() [launch.cpp:166]
UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134]
UE4Editor!WinMain() [launchwindows.cpp:210]
UE4Editor!__scrt_common_main_seh() [exe_common.inl:253]
kernel32!BaseThreadInitThunk()
ntdll!RtlUserThreadStart()

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Fixed
ComponentRendering
Affects Versions4.114.124.134.144.154.164.174.184.194.214.23
Target Fix4.24
Fix Commit9874295
Main Commit9874296
Release Commit9874295
CreatedDec 1, 2017
ResolvedOct 28, 2019
UpdatedDec 2, 2019