Clothing Pops on start and LOD switching

UE - Simulation - Physics - Character - Sep 6, 2018

Clothing can have noticeable popping when switching LODs, and there is currently no mechanism to initially start cloth in a resting pose, causing popping on spawn. ...

Vulkan leaks memory when opening and closing windows

UE - Rendering Architecture - RHI - Nov 22, 2019

As described here: https://udn.unrealengine.com/questions/532725/index.html (1) Start Prebuilt Vanilla 4.23.1. with Vulkan enabled (2) Create a new project (3) Drag and drop the Sphere from “modes ...

Widgets With Retainer Boxes Are Selected When Behind Widgets Without One

UE - Editor - UI Systems - Dec 24, 2019

When a widget that has a retainer box is behind another widget that doesn't have one it will call it's onclick instead of the one in front of it in the UMG when clicked (see attached gif). This beh ...

Unable to select Paper2D Actors with Translucent Material in Viewport

UE - LD & Modeling - Modeling Tools - Mesh Editing - Aug 20, 2020

Unable to select Paper2D Actors with Translucent Material in the Viewport in version 4.25.3. Reported in version 4.25.3(CL 13942748). Tested in versions 4.24.3(CL 11590370) and 4.25.3. Issue does n ...

Rotating constraints in PhAT rotates both reference frames

UE - Simulation - Physics - Feb 20, 2019

Rotating constraints in PhAT rotates both reference frames. This behavior was previously enabled by holding ALT while rotating, as indicated by an on screen message in PhAT, but has now become the d ...

Widget causing ensure to trigger on end play

UE - Editor - UI Systems - Nov 15, 2019

Widget is causing an ensure to be hit when exiting gameplay.  Tested in: 4.24 Preview2 CL#10091930 , 4.25 CL#10183780 Attached URL's from the user:  https://forums.unrealengine.com/community/ge ...

A repainted cloth mesh continues to use previous paint job and does not update

UE - Simulation - Physics - Character - Dec 20, 2019

Cloth mesh reverts back to original painted mesh after editing Tested:     4.23.1 CL#9631420 4.25 CL#10730208 ...

mobile scenedepth issues on 4.25 with ES 3.1 Preview

UE - Platform - Mobile - Jul 1, 2020

We have a problem with the SceneDepth related features on the mobile after migrated to 4.25.1 from 4.23SceneDepth node output issue in translucent materialsDepthFade node output issue in translucent ...

Translucent particles can no longer be selected when translucent selection is on

UE - Niagara - Aug 25, 2020

Translucent selection does not work on Niagara particles. This was working in 4.24. ...

USD Stage is not available on Mac and Linux

UE - Editor - Content Pipeline - Import and Export - Dec 17, 2019

On Mac and Linux the option to open the USD Stage window is not there like it is on Windows. This is not a regression since USD Stage was not preset in 4.23.1 (CL-9631420) on any platform. ...