Unreal Engine Issues
Unreal Engine Issues
Prevent unnecessary rebuilds of windows resource files
UE - Core - Cpp Tools - UnrealBuildTool - Sep 20, 2023How Necessary are BUILT_FROM_CHANGELIST and BUILD_VERSION in Resource Files? We've been investigating ways to improve the speed of our iterative engine builds, and have found that the vast, vast maj ...
[CrashReport] UE4Editor_Engine!FTextureCacheDerivedDataWorker::BuildTexture() [texturederiveddata.cpp:772]
UE - Graphics Features - Feb 20, 2017Error message: Access violation - code c0000005 (first/second chance not available) Source Context:757 if (SourceMips.Num()) 758 { 759 FFormatNamedArguments Args; ...
TMap where key is an FString: initializer list will accept bad MakeTuple
UE - Core - Systems - Sep 2, 2026POST LINK: https://forums.unrealengine.com/t/tmap-where-key-is-an-fstring-initializer-list-will-accept-bad-maketuple/2747443 POST BODY:Summary A TMap where the key is an FString can be created lik ...
Breakpoint on SetText node in WBP PreConstruct triggers editor hang on save
UE - Gameplay - Blueprint - Apr 17, 2024A user reported that when calling SetText on a text widget in a widget blueprint's PreConstruct causes an editor hang when you put a breakpoint on SetText and attempt to save the asset. The issue i ...
[Configuration] Exported Presentations do not adhere to "Visible Configuration" settings and display all Configurations
TM - Tools - May 19, 2026Reported in SF [Link Removed] Exported Presentations do not respect the "Visible Configuration" settings set for the Presentations and instead display all Configurations regardless of whether they ...
[CrashReport] Linux crash - TOpenGLBuffer<FOpenGLBaseVertexBuffer, 34962u, &()
UE - Platform - Linux - Sep 14, 2017This is an infrequent Linux crash that has affected a few users in 4.17.1 Callstack from Log[2017.09.12-17.23.41:651][ 0]LogRHI: OpenGL MajorVersion = 4, MinorVersion = 5, ShaderPlatform = GLSL_43 ...
[CrashReport] UE4Editor_UnrealEd!FEdGraphUtilities::PostProcessPastedNodes() [edgraphutilities.cpp:138]
UE - Gameplay - Blueprint - Jan 24, 2017This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Access violation - code c0000005 ( ...
Custom Event with array param does not take a pointer to the array
UE - Gameplay - Blueprint - Oct 12, 2016When an array is passed into a BP custom event, the array's data is passed to the event rather than a pointer to the array itself. This means edits made directly from the event node's input pin (su ...
Null FPhysicsActorHandle dereference in FBodyInstance::InitDynamicProperties_AssumesLocked when CreateShapes_AssumesLocked fails during async body init
UE - Runtime - Simulation - Aug 2, 2026Summary When CreateShapes_AssumesLocked fails during async body creation, the failed FBodyInstance is left in Bodies[] with a released actor handle. InitDynamicProperties_AssumesLocked is then called ...
[CrashReport] Crash CheckForWorldGCLeaks() - EditorDestroyWorld()
UE - AI - Sep 8, 2017This is a somewhat common but longstanding Mac crash that has affected users since at least 4.13. Recently in 4.17.1, the crashes are all occurring in various ARKit projects User DescriptionsI add ...