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. ...

Plugin cannot be created when adding the "-" character

UE - Foundation - Cpp Tools - Plugin System - Dec 15, 2022

Repro Rate: 10/10 This issue occurred in the live build of //UE5/Release-5.1 at CL 23058290. This was regression tested against //UE5/Release-5.0 at CL 20979098 and is confirmed to not be a regres ...

Network Prediction Insights tool checks/crashes with trace data from a multiplayer PIE session

UE - Gameplay - Network Prediction - Mar 27, 2024

Loading a trace in Insights that has Network Prediction channel data from a multi-client PIE session will hit a check and crash the Insights tool. ...

Issue where some colors are missing in some materials created by importing MaterialX files

UE - Editor - Content Pipeline - Import and Export - Apr 1, 2024

From user: Comparing UE, Arnold, Vray and MaterialXView that have MaterialX files imported, some materials of UE clearly look different from other renderers. Looking into this issue, we found that ...

Depth of field and Refraction issue

UE - Rendering Architecture - May 15, 2024

Refraction does not adjust the scene depth texture, leading to a mismatch between Scene Color samples and Scene Depth samples. ...

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. ...

Crash Occurs When Importing a .ABC File as Skeletal Mesh Into Project That Already Contains Asset's Materials

OLD - Anim - Jun 8, 2018

Editor crashes when importing an .abc file as a skeletal mesh and the assets materials already exist inside the project. -Materials need exist inside project before import -If the .abc file is imp ...

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. ...