Slate UI asset colors washed out on iOS

UE - Platform - Mobile - Feb 24, 2017

UI widgets are appearing a much brighter than they should TEST MACHINE SPECS: iPhone 7, iPhone SE, iPad Pro ...

Crash Occurs When Setting Child Actor Class in Child Blueprint

UE - Gameplay - Blueprint - May 4, 2017

A crash occurs when setting the Child Actor Class of an inherited child actor component. This is not a regression. It occurs in 4.14.3 CL# 3249277, 4.15.2 CL# 3416026, and 4.16 Preview 2 CL# 34155 ...

Force Feedback is weaker on Linux when compared to Windows

UE - Platform - Linux - Jun 4, 2019

Force Feedback Effects vibrate weaker on Linux when compared to Windows in the same test project. This was reported and tested on 4.22.2 (CL-6574378). This was reproduced on 4.21.2 (CL-4753647) and ...

When Niagara is set to DesiredAge in Sequencer, the processing load increases after play

UE - Niagara - Cinematics - Jun 3, 2021

This does not happen in 4.25.4. It has been confirmed to occur with 4.26.2 and UE4main. After playback is complete, a large amount of stalls can be seen in Insight. ...

Meshes often render or flicker black in one eye on OSVR

UE - Platform - XR - May 6, 2016

Found on: //UE4/Dev-VR CL-2967563 Often, meshes will render completely black in one eye on the OSVR. This seems to affect close meshes more frequently than far away ones. Sometimes the meshes flick ...

DuplicateObject does not keep settings from the object duplicated

UE - Foundation - Core - UObject - Jul 24, 2017

When using DuplicateObject, some aspects of the copied object (such as component transform) are not duplicated to the copy. Regression: Yes - DuplicateObject behaved as expected in 4.15.2 Working - ...

Set World Origin on a Dedicated Server causes Pawn Stuttering

UE - World Creation - Worldbuilding Tools - World Composition - Jun 10, 2019

Setting the World Origin after enabling Multiplayer World Origin Rebasing in the Project Settings causes the Pawn to flicker on movement. Tested in 4.21.2 (CL - 4753647), 4.22.2 (CL - 6574378), 4 ...

Grass does not show up when I override the Material of LandscapeComponent.

UE - Graphics Tools - Terrain - Landscape - Sep 8, 2021

Regression checked in //UE4/Release-4.26.2 CL 15973114 the issue is not reproduced thee ...

Pawn Blueprint cannot have variables default value set in Engine ini

UE - Gameplay - Blueprint - Jun 1, 2017

When using a pawn blueprint, you cannot modify the value of a variable in the config files. This issue does not affect other kinds of blueprints, as this issue does not affect actor blueprints. Re ...

Curve Editor in CameraAnim and Matinee does not display anything in UE4.22

Tools - May 22, 2019

The Curve Editor appears black and doesn't show any information or data. This is a regression from 4.21.2 (CL-4753647) where the Curve Editor functioned as expected. This was reported and tested in ...