Unreal Engine Issues
Unreal Engine Issues
MoviePipeline: Python Editor example can double-up objects in-scene
zComponent - Archive - Jan 4, 2022See the UDN for sample project. This is caused by the Editor Python sample not using the UMoviePipelineQueueSubsystem, which (when rendering) blocks the Sequencer from auto-binding to PIE. The fix ...
Building Packed Level Actors causes references to break in the Packed level Actors' Blueprints
UE - World Creation - Worldbuilding Tools - Level Instances - Oct 27, 2022This is not a regression. Tested in //UE5/Release-5.0 CL 20979098 Building Packed Level Actors causes references to break in the Packed level Actors' Blueprints. Rerunning the Build > Pack Level Ac ...
Renaming a level containing Text3DComponent can cause crash
zComponent - Archive - Jan 6, 2023BuildTextMesh function queued as AsyncTasks may be called during saving (renaming) a level containing Text3DComponents. The following workaround fix the problem. void UText3DComponent::BuildTextMe ...
Crash when editing FRuntimeFloatCurve's curve from sequencer's edit key window
zComponent - Archive - Mar 31, 2023Crash when editing a FRuntimeFloatCurve curve exposed through EventTrack or a self-made Struct from the sequencer key edit window. FRuntimeFloatCurve does not support Expose to Cinematic, so this m ...
[AI] Stack overflow in canRemoveVertex of DetourTileCacheBuilder
UE - Runtime - Character - Sep 28, 2023User reports of stack overflow happening in canRemoveVertex in DetourTileCacheBuilder.cpp if a poly has more than 16 vertices. The array for edges is a fixed array and is written to without checking ...
Gameplay Debugger does not currently support basic input chords
UE - Gameplay - Input - May 21, 2024A note from the user, seems like they have a fix for this already I've changed the type of UGameplayDebuggerConfig::ActivationKey to FInputChord and with ony small changes to surrounding code it ...
Blend Stack node doesn't have a valid FDeltaTimeRecord
UE - Runtime - Animation - Apr 19, 2024The blend stack node doesn't generate any values for its DeltaTimeRecord. This can be tested with the fix for [Link Removed] ...
Cut & Paste in Sequencer breaks with Attach track
zComponent - Archive - Jan 15, 2025Cutting two tracks in sequencer, which one is attached to another one, and pasting it break with Attach track. By this operation, Attack track loses its binding object. Copying such tracks and paste ...
MID TextureCollections don't work with Post Process Overlays
UE - Rendering - RHI - Aug 24, 2026TextureCollectionParameters in a material assigned to a Post Process Overlay are not overridden by a MID because CopyInterpParameters in Engine\Source\Runtime\Engine\Private\Materials\MaterialInsta ...
Crash in editor after disabling AISystem in Worldsettings
UE - AI - May 16, 2018After disabling the World Option bEnableAISystem, clicking with the right mouse button on the asset browers (in an empty place) casues the editor to crash. ...