Unreal Engine Issues
Unreal Engine Issues
Linked Anim Layers reference Anim Layer (Self) instead of Linked Anim
UE - Runtime - Anim BP - Jan 11, 2023Regression: Tested in UE5/Release-5.0, this issue does not occur so it is a regression There is a work around to get it to reference Linked Anim Layer. If the Animation Layer Interface has two Anim ...
Unable to copy tracks from UMG animation to another animation
zComponent - Archive - Jan 27, 2023In UE5.0 it was possible to paste Tracks from one Animation to another, but from UE5.1 this fails with the message "Can't paste section. No selected tracks to paste sections onto". The attached pro ...
Create a Material Editor node that exposes the VertexID
UE - Rendering - Architecture - Materials - Feb 20, 2023A UDN user has requested that we expose the VertexID as a Material Editor graph node. According to a brief thread with [Link Removed] , this is a useful feature to add. https://udn.unrealengine.com ...
Double clicking on Interface Function in Blueprint Graph does not take you to the function implementation.
UE - Editor - Jan 11, 2024When double-clicking on an interface function call within a blueprint, the expected behaviour is that it will take you to the implementation of this function. However, it currently does nothing. ...
Using Clip() in a material may cause the outline to be displayed incorrectly on the Editor.
UE - Rendering - Features - May 3, 2024This appears to be from an interaction between the Depth Fade Expression, clip() in a Custom Expression, WPO being enabled, and the fact that the pass that draws objects for the editor outline runs ...
[AI] AgentToNavDataMap still contains entries when cleaning up navigation system
UE - Runtime - Character - Jun 10, 2024The navigation system has errors in the log for agents still being mapped to navigation data in CleanUp. This appears to stem from agent step height being recalculated in ARecastNavMesh::SetConfig i ...
Editor preview window for CurveLinearColorAtlas does not automatically update when their CurveLinearColor asset is changed
UE - Rendering - Features - Nov 12, 2024When the CurveLinearColor asset assigned to a CurveLinearColorAtlas is edited (e.g. change the colors of the gradient), the preview window of CurveLinearColorAtlas editor does not automatically upda ...
Mirror Data Table Asset Not Mirroring Expected Curve Names
UE - Runtime - Animation - Sep 17, 2025When mirroring the MetaHuman Face_Archetype_Skeleton it has been noticed that some curve names are not mirrored correctly (such as head_lod0_mesh_mouth_lowerLipDepress_left) while a large number of ...
Incorrect rendering result on some geometry and materials in grouped components in SKP imports
TM - Interoperability - Aug 5, 2026Reported in SF [Link Removed] In Twinmotion 2026.1, when importing certain SKP files with grouped components, materials may render incorrectly on some grouped components and will appear with a dark ...
Alembic import causing a crash
UE - Gameplay - Sep 2, 2016Importing this test asset will cause the editor to crash when using any of the Alembic Import options. I did notice that the source test asset does have 6750 frames but when going through the impo ...