New Visibility Track creates an offset Visible(0) track in Sequencer

UE - Anim - Sequencer - Jan 14, 2017

The new Level Visibility track creates a Visible track that appears that it is created in the middle of the sequencer tracks. You are able to move the Visible track up flush with the timeline by cl ...

Generate Lightmap UVs Fails Very Frequently on FBX Imported Meshes

UE - Editor - Content Pipeline - Import and Export - Sep 24, 2019

Generate Lightmap UVs fails very frequently on FBX imported meshes.  Found in 4.22 CL# 7053642, 4.23 CL# 8386587, 4.24 CL# 8971176 ...

SkyLight IBL looks blurry on Android

UE - Platform - Mobile - May 12, 2021

MRQ - No Rayrtaced Shadows casted from Groom Caches with only 1 Spatial Sample

UE - Rendering - Graphics Features - May 28, 2025

A groom cache will not cast a raytraced shadow with only 1 spatial sample. It does not matter how many temporal samples you have. ...

Toggling Material Layer visibility in Parent Material doesn't propagate to children

UE - Rendering - Architecture - Materials - Jun 9, 2026

When Material layer visibility is toggled on the Parent Material in a Material hierarchy, only the Parent’s layer visibility is affected, the children are not. Saving the Parent material has no effe ...

4.19 high dpi menu issue.

Tools - Mar 22, 2018

In a 4K environment, enabling windows animations along with high DPI causes some jittering in the menus. ...

Static Point build different lighting shape to what the Gizmo shows

UE - Graphics Features - Jun 1, 2018

It has no problem in 4.18 ...