Unreal Engine Issues
Unreal Engine Issues
Moving noise is visible in hair shadows when Lumen screen traces are active
UE - Graphics Features - Apr 18, 2024Dark moving noise is visible in hair in the shadows when Lumen screen traces are active. Example of noise when screen tracing is frozen:[Image Removed] Turning off Lumen screen traces using r.Lume ...
[CrashReport][Assert] UnrealEditor-RHI!FRHIResource::MarkForDelete() [Engine/Source/Runtime/RHI/Private/RHIResources.cpp:49]
UE - Rendering - Architecture - Materials - Dec 18, 2024One of the users described this issue as below. "At seemingly random times while working in the material graph, some action will cause a hitch or freeze, and quickly after the engine will crash, an ...
Crash When opening context menu in sequencer
UE - Anim - Sequencer - Mar 14, 2018Altering a key in an event track that contains a struck with a static mesh variable will cause the editor to crash. ...
Implemented Interfaces are not added to nativization list
UE - Gameplay - Blueprint Runtime - Jan 25, 2017Implemented interfaces are not added to the list of assets to nativize when the blueprint class that implements them is flagged for nativization, saved, and compiled. This results in a package failu ...
Descriptions for vis log shapes in the Rewind Debugger are misaligned
UE - AI - Debugging - Mar 25, 2025When recording shape information, descriptions are offset from the shape. Licensee Message - I noticed that the capsule vis log description labels were not lining up after replaying the recording ...
GAS: Double attributes not shown GameplayDebugger
UE - Gameplay - Gameplay Ability System - Aug 27, 2025Context The Gameplay Ability System lets devs specify numerical attribute properties in UAttributeSet subclasses. Although the preferred attribute property type is FGameplayAttributeData, GAS has l ...
Crash when jumping to location of referenced missing asset in a blueprint from Message Log window
Tools - Aug 29, 2016I created a static mesh blueprint and set the mesh asset to a mesh in my project. Then I closed the project, deleted the mesh .uasset, reopened the project. When opening the blueprint, there are w ...
Undoing a change to the content of a Text widget while it is still selected causes an assert
UE - Editor - UI Systems - Jul 17, 2018Hitting undo on a text widget while it is still selected will cause an assert. This appears to happen because the widget loses focus and attempts to commit it's text while still processing the undo, ...
Cascade Crashes Engine When Adding Particle LOD After Clearing LOD Settings
UE - Graphics Features - Feb 3, 2017In cascade if you add particle LODs then remove, clear the LOD settings array, then attempt to add more LODs (after current) the editor will crash. This crash will only occur if you add LODs after c ...
Camera is flipped when keying from negative to positive Crane Pitch
UE - Anim - Sequencer - Aug 19, 2016Camera is flipped when keying from negative to positive Crane Pitch ...