Unreal Engine Issues
Unreal Engine Issues
InstancedStaticMeshes disappear in Shipping builds on mobile when affected by dynamic point lights
UE - Platform - Mobile - Aug 22, 2019This ticket is to add the safe workaround for 4.23.1, with a more optimal fix coming in 4.24. ...
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. ...
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 - 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. ...
Dragging multiple static meshes in to a blueprint component window nests them
UE - Gameplay - Blueprint Editor - Mar 17, 2017Dragging and dropping a number of static mesh components should make them siblings, not children of one another in a random order. ...
Creating "Level Sequence with Shot" with spawnable cameras creates duplicate cameras
zComponent - Archive - May 31, 2023This is not a regression as it does occur in //UE5/Release-5.1 @ CL 23901901 Repro Rate: 3/3 times ...
Crash when using Consolas font on Android SDK 24
UE - Platform - Mobile - Mar 29, 2017A licensee reported that using the Consolas font on Android will cause the game to crash. I've narrowed it down to only occurring in the Android 24 SDK and on the ASTC configuration. Using Android(A ...
Animation retargeting adversely affects looping animations
OLD - Anim - Nov 21, 2014Retargeting a skeleton to a looping animation results in the animation skipping at the end of the loop (Appears to miss 1 or 2 frames.) ...
FLightMap2D::Serialize() contains a possible index out of range error.
UE - Graphics Features - Dec 30, 2014A user pointed out a potential to have an index out of range error in the source code. There are also a few magic numbers scattered around in this function. ...