Unreal Engine Issues
Unreal Engine Issues
Crash when creating a USkeletalMeshComponent inside a UMotionControllerComponent
UE - Runtime - Animation - Jan 11, 2023This is not a Regression. Tested in //UE5/Release-5.0 CL23058290. Crash occurs when creating a USkeletalMeshComponent inside a UMotionControllerComponent when applied to a Character. Commenting out ...
Bridge plugin causing crash when right-clicking content browser on Mac
Quixel - Apr 5, 2023Right clicking in the content browser causes a crash with the Quixel Bridge plugin enabled. This issue is occurring in Binary //UE5/Release-5.2-Preview-2 @ CL 24887336 This issue is not occurring ...
PCG Graph on 2x2 Landscape incorrectly displays weight on paint layers
UE - Graphics Tools - PCG - Graph - May 26, 2023In my example picture I have "Grass" set as the target attribute area but the debug cubes are appearing on the dirt and snow as well. This only happens when the landscape subsections are set to 2x ...
ULevelEditorDragDropHandler::PreviewDropObjectsAtCoordinates : Should set proper referencer domain when ContentBundle is active
UE - Engine Scaling - Streaming - World Partition - Aug 21, 2023ULevelEditorDragDropHandler::PreviewDropObjectsAtCoordinates sets the World as the ReferencingAsset when we should probably set the GameDataAsset for the current active ContentBundle if there is any ...
Hardware Accelerated Video Decoding with DirectX 11 causes videos to render black when loaded in a Media Player
UE - Media Runtime - Media Framework - Sep 7, 2023This is not a regression. Tested in //UE5/Release-5.2 CL26001984. Hardware Accelerated Video Decoding requires DirectX 11, but it appears the combination causes media players to only render a black ...
Local fog volume rotation causes offset issues at high world position values
UE - Rendering - Features - May 20, 2024Local fog volumes have a substantial offset when placed at a far distance from world origin and is then rotated. This was not the case in 5.3 when tested under the same conditions, so this is likely ...
Crash when an empty Anim Composite is attached to a Mesh component of a BP actor in a Level Sequence
zComponent - Archive - Sep 27, 2024There is a crash that will occur when an empty Anim composite asset is being referenced in the Mesh component attached to a BP actor within a level sequence. Crash also occurs in Live 5.4.4 - not a ...
Niagara Position Mode Unset results in World Space rather than Local Space
UE - Rendering - Architecture - Niagara - Apr 16, 2025When an emitter's Position Mode is Unset, the particles spawn in World Space 0,0,0. This is unexpected. If the Position Mode is Unset in 5.4, the particles remain in Local Space, which is the inten ...
Missing materials on the rear lights and windows of library vehicles
TM - Content - Oct 24, 2025Reported in SF [Link Removed] The rear light material and window materials on Twinmotion library vehicles are not present on many vehicles in TM 2025.2. Confirmed affected vehicles are in the foll ...
bStaticWhenNotMoveable in Lighting category instead of Physics
UE - Runtime - Character - Oct 24, 2025"UPrimitiveComponent::bStaticWhenNotMoveable"'s category is set to Lighting, not Physics. This causes it to be hidden when lighting-related properties are hidden, even though it controls physics sta ...