Unreal Engine Issues
Unreal Engine Issues
Rect Light Texture does not unload during level streaming in packaged game
UE - Rendering - Features - Jun 2, 2023Local Exposure can cause large variations in PreExposure under certain conditions
UE - Rendering - Features - Sep 16, 2025PreExposure is influenced by LocalExposure in PostProcessEyeAdaptation.cpp:1265. It appears when the scene is particularly dark and using manual exposure, the LastAverageLocalExposure can read a lar ...
The red time indicator for viewing curves in persona is slightly tilted
OLD - Anim - Sep 9, 2016The time indicator for curves in persona is slightly tilted off vertical. This also occurs in 4.13 main. ...
Enable Slate layout caching Will cause the Stop/Play Buttons to disappear
UE - Editor - UI Systems - Slate - Dec 17, 2018When using the command Slate.EnableLayoutCaching 1, The Play button is removed from the tool bar after exiting play. ...
Hair shading emits light when Lumen is enabled
UE - Rendering - Features - Jun 6, 2022This artifact does not occur when Lumen is disabled. Also, moving Roughness closer to 1 will reduce the effect. ...
All Megascan asset libraries are missing
TM - Core - Oct 15, 2025All Megascans assets no longer appear in Twinmotion 2025.2 hotfix (46767548). Other libraries do not appear to be affected. ...
Project crashes when exiting mobile preview
UE - Gameplay - May 27, 2015User project crashes when exiting from mobile preview. Frequency: 5/5 Crashreporter: [Link Removed] ...
Sequencer: Undoing creation of a new section can call section drawing code with viewmodel tree in invalid state
zComponent - Archive - Aug 1, 2024The Section reference in ISequencerSection::GetSectionHeight can be in the process of garbage collection during an undo of a section addition- this causes things like GetTypedOuter<UMovieSceneTrack> ...
UE5.7 InterchangeGenericAssetPipeline -> MaterialPipeline are not using parent material for material creation on import, was working in UE5.6
UE - Editor - Open File Formats - Import and Export - Nov 24, 2025Hi there, It feels like a bug that the interchange generic pipeline is not using user-selected parent material for asset import, since it was working back in UE5.6 then we upgrade the engine to 5.7 ...
Expose Component Replication in ActorComponent
UE - Gameplay - Aug 9, 2016UActorComponent has hideCategories=(ComponentReplication) set in the UClass macro preventing uint32 bReplicates:1; to be set as a default setting. ...