Output Log In Engine and In Local Log File Are Inconsistent

UE - Foundation - Core - Feb 21, 2020

The Log Timestamp doesn't display in local time when "Log Timestamp Mode" and "Display Timezone" are set to "Local Time". Found in 4.24.2 CL#11100242 Reproduced in 4.23.1 CL#9631420, 4.26 Main CL#1 ...

Generate all Bodies on Selected Bones Does Not Generate Single Convex Hulls Uniformly

UE - Simulation - Physics - May 12, 2022

Occurs 5/5 Times Regression does not occur in //UE4/Release-4.27.2 @ CL 18319896 When 'Generating All Bodies' on a bone the single convex hull does not generate uniformly.  ...

Mirror operation on Physics Asset produces wrong results for constraints, including flipped axes

UE - Simulation - Physics - Feb 7, 2025

The Physics Asset Editor has a "mirror" feature that allows physics bodies and constraints to be mirrored from one side of a skeleton to the other. If this operation worked correctly, it could save ...

Instanced meshes do not accurately use volume light samples when lit in a statically lit scene

UE - Graphics Features - Aug 14, 2015

When using instanced meshes in a Blueprint or in foliage tool the indirect lighting cache will not correctly light these meshes. I've include a sample project with map to demonstrate what the lice ...

Auto Convex collision generation doesn't work in some instances the accuracy setting

UE - Gameplay - Jun 18, 2015

The new auto-convex collision generated (V-HACD) will not work properly with some meshes to generate accurate collision. Using a rounded single piece mesh the accuracy setting will not work at all ...

Adding a node or variable to a component referenced by another actor crashes editor

UE - Gameplay - Blueprint - Aug 3, 2015

If compile is pressed after adding a variable or node to a blueprint component that has a variable referenced within another blueprint actor, the editor immediately crashes. Frequency: 1/1 Crashr ...

MaterialInterface is not exported and therefore it's functions are not accessible

UE - Graphics Features - Jun 9, 2015

MaterialInterface which is a base class for other classes (such as UMaterialInstanceDynamic) is not being exported which causes compiler errors when a user attempts to access the functions of this c ...

After loading a SubLevel from the PersistentLevel of WorldComposition, the offset of WorldComposition is applied when loading the SubLevel alone

UE - World Creation - Worldbuilding Tools - World Composition - Aug 30, 2018

When loading a Sub Level from the Persistent Level of World Composition, the offset of WorldComposition is applied when loading the Sub Level by itself. The offset can be applied repeatedly when rel ...

Drag and Drop Operations Don't Work Correctly When "Render on Phase" Is Enabled In a Retainer Box

UE - Editor - UI Systems - Slate - Jan 31, 2020

Drag and drop operations don't work correctly when "Render on Phase" is enabled in a retainer box. When "Render on Phase" is disabled the drag and drop operations work as expected. In 4.23.1 the dr ...

Volumetric Lightmaps Persist When Opening Different Level

UE - Graphics Features - Lumen - Feb 24, 2020

When moving between levels with built lighting volumetric light maps persists between levels. Workaround: Load the same level twice. Found in 4.24.2 CL#11100242 Reproduced in 4.26 Main CL#11574810 ...