Steam VOIP will drop packets with more than two people talking at once

UE - Online - Oct 5, 2016

VOIP has a limited amount of concurrent clients talking before packets start to get dropped. ...

Crash can occur in the Ansel plugin when setting Use Client Side Camera Updates to false in Player Camera Manager

UE - Graphics Features - Apr 18, 2017

Setting the `bUseClientSideCameraUpdates` property in a `PlayerCameraManager` class to false can result in a crash in the Ansel plugin because `GEngine->GameViewport` may be NULL. Another user has ...

Creating a new Physics Asset will override the behavior of the previous Physics Asset inside the Phat Editor

UE - Gameplay - Aug 11, 2016

Creating a new Physics Asset will override the behavior of the previous Physics Asset inside the Phat Editor. This seems to be linked to which physics asset is currently assigned to the skeletal me ...

Translucent User Interface materials do not have a thumbnail preview

Tools - Feb 15, 2018

Translucent User Interface materials do not have a thumbnail preview. I do not see this issue with Translucent Surface materials. REGRESSION: No, this issue also occurs as far back as 4.17.2 ...

Inclusive Nativized Blueprints slower than Non Nativized Blueprints in packaged project

UE - Gameplay - Jul 1, 2019

When nativizing blueprints the packaged build of the project runs slower than a non-nativized version of the packaged project. Found in 4.22 CL#7053642 Reproduced in 4.21 CL#4753647, 4.24Main CL#7 ...

Distant mesh / vista have visible Lumen bounces

UE - Rendering - Architecture - Jun 15, 2024

Objects far outside of the Lumen Scene don't temporally accumulate screen traces, leading to heavy flickering. It appears that the temporal reprojection is failing when comparing the depth in "Scree ...

20 FPS performance drop between 4.7.6 and 4.8 on devices rendering Metal only

UE - Platform - Mobile - Jun 22, 2015

User reported a considerable performance drop on iOS between versions 4.7.6 and 4.8. I was able to reproduce this perf drop using the steps he provided. ...

Vertex Animation anti-aliasing improvement

UE - Graphics Features - Jun 2, 2015

A licensee has reported that their vertex animations are leaving a lot of be desired with anti-aliasing. Specifically using vertex animated meshes can leave aliasing remnants behind while it's shift ...

Mobile Preview - Custom Stencil 4.23 Regression

UE - Platform - Mobile - Oct 25, 2019

Regression when using custom stencil with in-editor mobile preview. This does NOT reproduce in MAIN at CL 9730599 ...