The cap of a sliced procedural mesh is not affected by lighting

UE - Gameplay - Jul 14, 2016

After slicing a procedural mesh, the cap on the sliced end does not seem to be affected by lighting. This can result in the end looking dark. ...

C4D Mograph not working in 4.24.0

UE - Editor - Content Pipeline - Datasmith - Importer - Dec 16, 2019

A customer is reporting that C4D mograph support is broken in version 4.24. C4D file added under [Link Removed] folder in: [Link Removed] ...

OSVR is affected by screen percentage Post Process volumes

UE - Platform - XR - May 6, 2016

Found on: //UE4/Dev-VR CL-2967563 Screen percentage post process volumes affect rendering on the OSVR. It also renders incorrectly when affected. The incorrect effect has been logged as [Link Remo ...

ContentExamples: UMG Example 2.3 "blueprint" is lowercased

Docs - Samples - Jan 19, 2017

The word "blueprint" on stand 2.3 in the Content Examples: UMG map is lowercase, but should be capitalized ...

Specular Scale 0 on Light still affects Groom asset

UE - Rendering Architecture - Jul 30, 2025

When a light's Specular Scale is set to 0, the specular still affects hair / groom assets. The specular of other assets (like a shiny static mesh in the scene) is properly affected by the change.  ...

Lumen temporal flicker after leaving Editor open for 3+ days

UE - Graphics Features - Lumen - Nov 18, 2024

Lumen GI has temporal flickering/noise after running the Editor for 3+ days. ...

Materials with Subsurface Profile not affected by Opacity value

UE - Graphics Features - Oct 24, 2017

A material with Shading Model set to Subsurface Profile is no longer affected by Opacity value in 4.17, 4.18, and 4.19 (Main) but was previously working as intended in 4.16. This is a regression. ...

Web browser widget appears to run at ~24 FPS

UE - Editor - UI Systems - Dec 5, 2016

Web browser widget appears to fun at ~24 FPS. The FPS for the editors browser widget is much lower than what is seen on other browsers. ...

VS2015 Update 3 prevents the editor from compiling code

UE - Foundation - Cpp Tools - UnrealBuildTool - Jun 28, 2016

Updating Visual Studio 2015 to Update 3 prevents code projects from compiling / creating new code projects ...

4.24 Instanced Stereo Distortion Error in ComputeBufferUVDistortion

UE - Graphics Features - Nov 13, 2019

4.24 moves distortion calculations to the file DistortionCommon.ush and its`ComputeBufferUVDistortion` function. The code in the INSTANCED_STEREO define no longer works as `Interpolants` isn't passe ...