This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below.
Error message:
Fatal error: [Link Removed] [Line: 1663] Failed to compile default material WorldGridMaterial!
Source Context:
1648 if (!bSucceeded)
1649 {
1650 // If it failed to compile the material, reset the shader map so the material isn't used.
1651 GameThreadShaderMap = nullptr;
1652
1653 if (IsDefaultMaterial())
1654 {
1655 for (int32 ErrorIndex = 0; ErrorIndex < CompileErrors.Num(); ErrorIndex++)
1656 {
1657 // Always log material errors in an unsuppressed category
1658 UE_LOG(LogMaterial, Warning, TEXT(" %s"), *CompileErrors[ErrorIndex]);
1659 }
1660
1661 // Assert if the default material could not be compiled, since there will be nothing for other failed materials to fall back on.
1662 ***** UE_LOG(LogMaterial, Fatal,TEXT("Failed to compile default material %s!"), *GetFriendlyName());
1663 }
1664 }
1665 }
1666 }
1667 else
1668 {
1669 bSucceeded = true;
1670 }
1671
1672 // Note: this is safe to set from the game thread because we should be between the RenderFences of an FMaterialUpdateContext
1673 RenderingThreadShaderMap = GameThreadShaderMap;
1674
1675 return bSucceeded;
1676 }
1677
Most recent user affected CL: 3299760
Logs: [Link Removed] [Link Removed] [Link Removed] [Link Removed]
Issue call stack shares some similarities with [Link Removed]
Repro Steps Unknown
UE4Editor_Engine!FMaterial::CacheShaders() [materialshared.cpp:1663] UE4Editor_Engine!FMaterial::CacheShaders() [materialshared.cpp:1547] UE4Editor_Engine!UMaterial::CacheShadersForResources() [material.cpp:2179] UE4Editor_Engine!UMaterial::CacheResourceShadersForRendering() [material.cpp:2097] UE4Editor_Engine!UMaterial::PostLoad() [material.cpp:2760] UE4Editor_CoreUObject!UObject::ConditionalPostLoad() [obj.cpp:859] UE4Editor_Engine!UMaterialInterface::PostLoadDefaultMaterials() [material.cpp:421] UE4Editor_Engine!UMaterial::PostLoad() [material.cpp:2573] UE4Editor_CoreUObject!UObject::ConditionalPostLoad() [obj.cpp:859] UE4Editor_CoreUObject!EndLoad() [uobjectglobals.cpp:1635] UE4Editor_CoreUObject!LoadPackageInternalInner() [uobjectglobals.cpp:1321] UE4Editor_CoreUObject!LoadPackage() [uobjectglobals.cpp:1477] UE4Editor_CoreUObject!ResolveName() [uobjectglobals.cpp:756] UE4Editor_CoreUObject!StaticLoadObjectInternal() [uobjectglobals.cpp:843] UE4Editor_CoreUObject!StaticLoadObject() [uobjectglobals.cpp:903] UE4Editor_UMG!ConstructorHelpersInternal::FindOrLoadObject<UMaterialInterface>() [constructorhelpers.h:35] UE4Editor_UMG!UWidgetComponent::UWidgetComponent() [widgetcomponent.cpp:573] UE4Editor_UMG!InternalConstructor<UWidgetComponent>() UE4Editor_CoreUObject!UClass::CreateDefaultObject() [class.cpp:2722] UE4Editor_CoreUObject!UClass::CreateDefaultObject() [class.cpp:2679] UE4Editor_CoreUObject!FObjectInitializer::CreateDefaultSubobject() [uobjectglobals.cpp:3698] UE4Editor_CoreUObject!UObject::CreateDefaultSubobject() [obj.cpp:120] UE4Editor_VREditor!AVREditorFloatingUI::AVREditorFloatingUI() [vreditorfloatingui.cpp:37] UE4Editor_VREditor!InternalConstructor<AVREditorFloatingUI>() UE4Editor_CoreUObject!UClass::CreateDefaultObject() [class.cpp:2722] UE4Editor_CoreUObject!UObjectLoadAllCompiledInDefaultProperties() [uobjectbase.cpp:777] UE4Editor_CoreUObject!ProcessNewlyLoadedUObjects() [uobjectbase.cpp:853] UE4Editor!FEngineLoop::PreInit() [launchengineloop.cpp:1738] UE4Editor!GuardedMain() [launch.cpp:127] UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134] UE4Editor!WinMain() [launchwindows.cpp:210] UE4Editor!__scrt_common_main_seh() [exe_common.inl:264] kernel32!BaseThreadInitThunk() ntdll!RtlUserThreadStart()
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-42841 in the post.