Skeletal Meshes keep reference to unused Material IDs

UE - Editor - Content Pipeline - Import and Export - Sep 7, 2016

When importing a FBX with multiple materials and some of them are unused from their setup, they will still be referenced by the skeletal mesh in the Details Panel in the level editor, but in the Per ...

"showdebug abilitysystem" shows incorrect attribute stats for debug target

UE - Gameplay - Mar 11, 2020

When using 'showdebug abilitysystem' and switching debug target actor with Page Up and Page Down. It will not change to show the debug attributes info for the new target. The debug will still only s ...

[Reverb][Regression] - The Reverb Effect in World Settings Does Not Update When Loading New Levels

UE - Audio - Mar 12, 2021

When loading a new level via the Open Level node in Blueprints, the World Settings do not update the Applied Reverb Effect. When trying to reproduce the issue in 4.25.4, issue did not occur (the r ...

Override Game Mode in Media Render Queue does not work properly

zComponent - Archive - Jun 21, 2021

This problem behaves differently between Local and Remote Render when Game Mode is set in Override. ...

Virtual Bones Are Not Retained in Retargeted Animation Aim Offsets

zComponent - Archive - May 13, 2022

Occurs 5/5 times Virtual Bones are not retained in Retargeted Animation Aim Offset. Regression does not occur as UE5 Manny assets are not available for retargeting before UE5.    ...

New folder shortcut (Ctrl+Shift+N) does not work in multi-Content Browser layouts until a folder is manually focused

UE - Editor - Sep 23, 2025

In multi–Content Browser layouts, the New Folder shortcut (by default Ctrl+Shift+N) does not work immediately after switching to another Content Browser tab. It appears that the editor does not auto ...

Spline Mesh Component created from KML file doesn't render in PIE after spline point change

Tools - Oct 8, 2015

Spline Mesh Component created from KML file doesn't render in PIE after spline point change I cannot get this to occur outside of the users test project. He is pulling data from a KML file, creatin ...

Emissive for Static Lighting looks incorrect when using lower Static Lighting Level Scale

UE - Graphics Features - Jun 13, 2016

When using a lower value for Static Level Lighting Scale in the World Settings under Lightmass the blending of the area lights is not blended together for a smooth emissive look. Instead, there are ...

Root Bone Rotated Incorrectly in Default Animations

UE - Anim - Rigging - Sep 18, 2015

In the Mannequin's default third person animations, the root bone is rotated Z forward/Y down resulting in IK's for hands and feet not aligning correctly. The result being that the joints that are ...

A Blueprint containing a child actor component containing another Blueprint that derives from NavLinkProxy does not provide a nav path when a project is opened until paths are rebuilt

UE - AI - Jun 1, 2015

If a Blueprint is derived from NavLinkProxy, and then that Blueprint is added to another Blueprint as a ChildActorComponent, the second Blueprint's Smart Link functionality will not work when the pr ...