Unreal Engine Issues
Unreal Engine Issues
Opening Materials and Material Functions with Vertex Interpolator node Results in Crash
UE - Graphics Features - May 23, 2018Per Licensee: Hello, We are migrating our project from 4.18 to 4.19.2 and we are encountering various crashes while opening our material and material functions. I'm adding a simple test case here. ...
[CrashReport] Crash in UE4Editor_AudioEditor!`FSoundSubmixGraphSchemaAction
UE - Anim - Sequencer - Jun 22, 2017This is a common crash occurring in the 4.16 release. This is potentially a continuation of [Link Removed], which was closed out when it received additional logging in 4.16. A log file is attached. ...
[CrashReport] UE4Editor_Renderer!FSceneRenderer::CreateWholeSceneProjectedShadow() [shadowsetup.cpp:1978]
UE - Graphics Features - Oct 2, 2017This is a trending crash coming out of the 4.18 Previews. Users have not provided any descriptions of their actions when the crash occurred. Source Context 1964 // Determine the amount o ...
RestrictedToClasses UCLASS Meta expects space delimiters but documentation shows comma delimiters
UE - Gameplay - Jul 19, 2019The documentation: https://docs.unrealengine.com/en-US/Programming/UnrealArchitecture/Reference/Metadata/index.html shows the RestrictedToClasses meta syntax as being RestrictedToClasses="Class1, C ...
RHICoreShader ValidateStaticUniformBuffer expected shader logging is confusing
UE - Rendering Architecture - Shaders - May 9, 2024The log output in ValidateStaticUniformBuffer, lists hashes that do not correspond to the actual shader name which makes it difficult to track down problem shaders. The current log output code is ...
The ResavePackages commandlet with -ResaveClass and -IncludeChildClasses doesn't resave unloaded assets
UE - World Creation - Worldbuilding Tools - Nov 28, 2024The ResavePackages commandlet can be used to batch resave assets. The ResaveClass and IncludeChildClasses options let one resave all assets of a specific parent class. The problem is that blueprint ...
FileSystemDerivedDataBackend may output a corrupted access log
UE - Foundation - Core - Derived Data - May 20, 2021This problem is caused by the AccessLogWriter has not been flushed at the termination. The following workaround flushes the Writer.class FFileSystemDerivedDataBackend : public FDerivedDataBackendInt ...
NiagaraSystem with EniagaraGpuComputeTickStage::PostInitViews rarely crashes due to multi-thread race conflicts
UE - Niagara - Mar 1, 2025NiagaraSystem with EEiagaraGpuComputeTickStage::PostInitViews should not have bSupportsParallelGDME because of possible multi-threaded contention, but FNiagaraSystemInstanceController::GetGpuCompute ...
[CrashReport] UE4Editor_D3D11RHI!FD3D11DynamicRHI::RHICreateUniformBuffer() [d3d11uniformbuffer.cpp:218]
UE - Graphics Features - Jun 12, 2018No user comments in crash group 208 check(Layout.ResourceOffsets.Num() == NumResources); 209 210 for (int32 i = 0; i < NumResources; ++i) 211 { 212 ...
Custom Profiles Don't Update Maps To Cook When One Is Deleted
Tools - Feb 10, 2020If you delete a map while it is marked to be cooked in a custom profile, then run the custom profile the map won't be deleted from the profile .ulps. I wasn't able to launch using the new custom pr ...