Geometry Pen Tool Duplicates Bushes On Grid Size 1 & 5

UE - LD & Modeling - Modeling Tools - BSP - Mar 7, 2018

There is an issue occurring when creating brushes with the pen tool at grid size 5 where verticles or the brush shape itself seems to be doubled. This issue also occurs if the grid size is 1, though ...

Editor crashes when importing 4.5.1 project to 4.6

UE - Gameplay - Blueprint - Dec 9, 2014

The user converted a copy of their 4.5.1 project to 4.6. Upon opening that project, the editor crashes. Deleting certain widgets allows the user to open the project, but opening any map results in a ...

Debugging Motion Matching in 5.1, looping animations don't loop root correctly

UE - MVF Character - Animation - Jan 31, 2023

Just trying a few simple animations in 5.1, I have a few short looping cycle animation that go in different directions. I see very bad results and it looks like it's because of how MM is assuming th ...

Linux: UI scale is sometimes not 1.0 on non-high-DPI monitors

UE - Platform - Linux - Nov 7, 2017

At the moment, UI scale is calculated on Linux from physical monitor dimensions (obtained ultimately from EDID) and not system scale. The granularity is 0.25, so scale can be 0.25, 0.5, 0.75, 1, 1.2 ...

depth calculation is not functioning properly on mobile ES 3.1 preview

UE - Platform - Mobile - Systems - Feb 21, 2023

In 5.1.1, the depth calculation is not functioning properly on mobile ES 3.1 preview, resulting in reflections occurring in areas where they should not. When checking with RenderDoc in ES 3.1 Previ ...

Dropdowns display incorrectly in non 1:1 zoom in BP on Mac and PC

Tools - Nov 16, 2016

On a Mac in UE4.14, drop down menus on the appropriate nodes will not display correctly when the Event Graph is zoomed out below a 1:1 ratio. Regression: Does not occur in UE4:13 ...

The bake_transform_with_settings method works in 5.6 but not 5.7

zComponent - Archive - Nov 26, 2025

Trying to automate the process of baking transforms via python and the identical code above works in 5.6 but not in 5.7. There are no error messages in the output log. When running in 5.7, it does ...

FASTBuild cannot compile 5.5 for Windows.

UE - Core - Cpp Tools - UnrealBuildTool - Oct 8, 2024

A licensee reported errors related to the sarif file when compiling version 5.5 using FASTBuild. The problem is that the FB implementation code doesn't know how to deal with the /experimental cl.exe ...

Morph Target Sets to Zero When Transitioning From 1 to -1 Causing Flickering

OLD - Anim - Jan 16, 2018

-Morph target cycles through all values instead of only alternating between 1 and -1 -Couldn't reproduce in 4.17 -attached a test morph target asset Link to example video from user: [Link Removed] ...

Affect Indirect Lighting While Hidden can affect the environment after data layer unload in editor

UE - Engine Scaling - Streaming - Data Layers - Sep 9, 2024

After setting Affects Indirect Lighting While Hidden but before saving the level, the emissive contribution persistents through datalayer visibility toggles. This does not appear to occur in PIE, on ...