GPU Lightmass and HLOD not working

UE - Graphics Features - Nov 4, 2022

(Enduring Games) Conversation with customer includes test project within which the config changes are also present for review. ...

Shadow in Sky Reflections

UE - Graphics Features - Lumen - Nov 10, 2023

It looks like the DistantScreenTrace(...) in LumenScreenTracing.ush reports a false positive hit in the dark regions. Using screen trace visualization reports the distance in these regions as 65535. ...

UserSceneTexture Post Process Material Renders Incorrectly When ScreenPercentage is Below 100

UE - Graphics Features - Dec 17, 2024

When using a UserSceneTexture in a post-process material, a visible rendering issue occurs if the viewport's ScreenPercentage is set to below 100. This issue looks like it might stem from an incorre ...

LastRenderTime does not update when Occlusion Culling is disabled

UE - Graphics Features - Feb 25, 2025

When disabling Occlusion Culling, Components will not have their Last Render Time updated. ...

2 minute hang and high memory usage when adding assets with large textures

UE - Foundation - Core - Cooker - May 28, 2015

2 minute (or more) hang and high memory usage when adding assets with large textures. The memory increase can be up to 3 or 4 GB when none of these assets(or referenced assets) take up nearly that ...

Local Vector variables in functions do not save the Y and Z values

UE - Gameplay - Blueprint - Mar 12, 2015

Local Vector variables in functions do not save the Y and Z values. Possibly connected: after entering the X value, pressing Tab does not move to the Y value. Tabbing from there works as expected. ...

Viewport Renders Black when adding a Third Player using Splitscreen Multiplayer

UE - Graphics Features - Feb 24, 2016

As the title suggests, whenever you attempt to add a third player using splitscreen, whenever the third player is created the viewport renders black. This only occurs when the viewport is sized to a ...

Crash When Adding Actor Component Tagged 'Within' to a Game Mode Blueprint

UE - Gameplay - Components - Apr 25, 2016

Crash occurs when attempting to add an actor component c++ class to a game mode blueprint if the actor component is tagged with the Within="GameMode". Found in 4.11.2 binary, reproduced in 4.10.4 ...

Get array node will disconnect on restart if it's getting from an array variable of the same bp

UE - Gameplay - Blueprint - Jun 18, 2015

Get array node will disconnect on restart if it's getting from an array variable of the same bp. User Description: I have connected GET and Target, then saved and closed the editor. Then I created ...

Moving or changing the name of a project's GameInstance will switch the Game Instance Class to None and crash launched games

UE - Foundation - Core - Nov 26, 2014

If the GameInstance set in Project Settings > Maps & Modes > Game Instance Class is renamed or moved to another folder, the Game Instance Class is switched to None. This causes a launched game to cr ...