Unreal Engine Issues
Unreal Engine Issues
Destructing NiagaraParameterStores causes multi threading write conflict
UE - Niagara - Jan 26, 2022FNiagaraParameterStore::UnbindAll() may be called from both GameThread and RenderingThread. Each may modify the same Binding array, it causes infrequent crashes. In my environment, I was able to r ...
Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point
UE - Editor - Workflow Systems - May 3, 2022Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point Repro Rate: 4/4 Tested this in //UE4/Release-4 ...
Duplicated ChildActor on World Partition Streaming
UE - World Creation - Worldbuilding Tools - World Partition - Feb 5, 2024The issue is encountered when streaming a world partition an actor with an AChildActorComponent which generates 2 instances instead of one when run as a client in the editor. This behavior does not ...
Dynamic (transient) material instance assignment lost if object spawnable
UE - Anim - Sequencer - Jun 21, 2024Material Instance Dynamic assigned to Spawnable objects with Editor Utility Widget get reverted when hit the Save button in Sequencer. This appears to come from the Material Instance Dynamic not be ...
A sampling result of DistanceFieldAOHistory is shifted to a wrong position.
UE - Graphics Features - Aug 21, 2024DistanceFieldAOHistory introduces ghosting at low scalability and low screen percentages. This can lead to AO artifacts and a ghosting effect from the character. This issue was also observed on //U ...
Issue with Landscape Layer Blending Node compile in UE 5.4.2
UE - Graphics Tools - Terrain - Aug 2, 2024When the SetMaterialAttributes Material Expression is used without an input to MaterialAttributes, it will cause Landscape Layer Blend expressions to fail to compile if it is the only layer on a par ...
Mesh Paint mode's Texture Paint has obvious artifact with UV seams
UE - Rendering Architecture - Oct 8, 2024Mesh Painting Texture Paint tool can miss some pixels along UV seams, even with "Enable Seam Painting" set to True. This appears to be because of the difference between rasterization and sampling. ...
The CompileAllBlueprintsCommandlet does not list the BPs contained in UWorlds
UE - Framework - Blueprint - Dec 16, 2024hThe use case of the licensee is that he used FindInBlueprints inside the Editor to find a particular text contained in BPs and later used that listing to recompile the BPs using the CompileAllBluep ...
GAS: GameplayDebugger crashes when AttributeSet has different rep conditions per attribute
UE - Gameplay - Gameplay Ability System - Jan 10, 2025When using the GameplayDebugger to show GAS debug info, and an AttributeSet has two replicated attributes with different replication conditions, a crash occurs in RegisterReplicatedLifetimeProperty( ...
Clipping bsp brush rotates clipped face on brushes that have their X,Y,Z values altered
UE - LD & Modeling - Modeling Tools - BSP - Sep 17, 2015If a bsp brush is rotated, then the brush clipping feature is used the "Brush Clipping" feature will rotate the created face by 90 degrees or disappear entirely (if set at an angle). ...