Unreal Engine Issues
Unreal Engine Issues
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 - Graphics 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
UE - Anim - Sequencer - 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 - Content Pipeline - 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. ...
GearVR crash with material using Fresnel or WPO on Snadragon S7
UE - Platform - Mobile - May 19, 2016Talking with ChrisB, this has been passed to Samsung and Qualcomm for investigation with the Signal 11 crash. This only affects the Snapdragon S7 devices. ...
Setting Alpha on RigidBody node results in bone displacement
UE - Simulation - Physics - Jan 31, 2017If the user sets the Alpha channel on the RigidBody node to something between 0 and 1, this can result in some bone displacement. ...
[CrashReport] CastChecked<UAnimBlueprint,UBlueprint>()
OLD - Anim - Jul 14, 2017This is a common crash affecting users in 4.16. Users have not provided additional information. Source context not available ...