[Level Instances] Editor Actor Folders does a full refresh after any LI is loaded, leading to wasted time when bulk loading LIs for a given WP region load

UE - World Creation - Worldbuilding Tools - Level Instances - Jun 26, 2025

From Licensee: We discovered a pretty big performance hit in editor when loading level instances for a world partition map, specifically: EditorActorFolders.cpp:FActorFolders::OnAllLevelsChanged() ...

Point Lights Invlidate Virtual Shadow Map Cache when at a distance from attenuation radius

UE - Graphics Features - Oct 28, 2025

When the camera is outside of a certain distance from a point lights attenuation radius the VSM of that point light stops caching shadow maps. This can also be reflected in the output from the 'r.S ...

Component tags do not register on actors

UE - Gameplay - Oct 30, 2015

Component tags do not register when checked within blueprints. ...

Asset Override Editor does not have vertical scrollbar until window is resized

OLD - Anim - Oct 22, 2015

If a child anim blueprint has enough animations to go beyond the view of the asset override editor, the override editor will not show a vertical scrollbar until the window is resized. ...

Packaged games do not display PlayerName correctly using Steam OSS

UE - Online - Jan 2, 2016

Packaged games do not display PlayerName correctly using Steam OSS. Does not occur in Standalone. Test project attached. To test, package for Development > Win64. When run (with the Steam client op ...

All additional Body Parts are hidden if main mesh is out of camera frame in Persona

OLD - Anim - Aug 18, 2015

If you have a small main mesh and use the "Additional Body Part" section of Persona to preview other meshes, they become hidden if the main mesh is out of the camera frame. [NameRemoved]: Can we ju ...

After changing Slot Name field, Slot node does not update until you re-open the AnimBP

OLD - Anim - Jun 9, 2015

After changing the Slot Name field, the Slot node does not update with the new name until you close and re-open the Animation Blueprint ...

Adding rotation to a bsp breaks extrusions

UE - LD & Modeling - Modeling Tools - BSP - Aug 24, 2015

Adding Rotation to a bsp breaks future extrusions, causing them to incorrectly render. ...

Imported .csv from Excel does not recognize cyrillic characters

Tools - Aug 11, 2015

If a .csv created in Microsoft Excel is imported into the editor, any cyrillic characters in the data table will appear as question marks or blank boxes. Note: According to user, this does not occ ...

Spawning Instanced Meshes with Multiple Collisions Produces Error Log Spam

UE - Gameplay - Jun 24, 2015

Constructing instanced meshes with multiple collision components spams the output logs with error messages. ...