Eyeball appears opaque on project launch

UE - Graphics Features - Feb 21, 2023

Math expression nodes should use CommutativeAssociativeBinaryOperator when applicable

UE - Framework - Blueprint Compiler - Mar 27, 2023

Read-only nodes used in math expression should use CommutativeAssociativeBinaryOperator when appropriate. Even though these nodes can't be modified, there is the occasional need to copy these nodes ...

Material previews in the content browser display the default material checkerboard

UE - Rendering Architecture - Materials - Nov 16, 2023

Occasionally material and material functions previews in the content browser are displayed with the default material checkerboard, perhaps due to shaders not being compiled. UDN users are also expe ...

Crashing when toggling maps containing Color Correct Regions

UE - Virtual Production - Rendering - Color - Nov 19, 2024

When maps with Color Correct Regions are streamed into another map have their visibility toggled during runtime, it will cause a memory access violation and crash the editor. ...

Landscape component's LODBias settings is ineffective

UE - Graphics Tools - Terrain - Landscape - Jan 7, 2025

[Image Removed] Jira Bot attaches conversation thread from Slack [Image Removed]Ryan Bickell – 2025-01-07 10:54:10 UTC Hello and happy new year! I'm messing with the Landscape component LODBias sett ...

Editor FPS has significant drop when moving a BSP brush in level with multiple BSPs

UE - AI - Navigation - Jan 8, 2025

Editor performance plummets when moving BSP brushes in a level with several other BSP brushes present. Navmesh regeneration is the main cause as the full bounds for all BSP are used to determine whi ...

Two-sided geometry cannot be enabled for re-imported models when converting from previous versions

TM - Interoperability - Jan 28, 2025

When converting files from previous versions of Twinmotion to Twinmotion 2025.1, re-importing any existing imported geometry will cause the geometry to be re-imported with two-sided geometry disable ...

Resource Collector does not compress files when the Compress files option is selected.

TM - Core - Jan 20, 2025

The Resource Collector does not compress the project and maps even if the option was checked. ...

Crash when two textures reference eachother as composite textures

UE - Texture - May 28, 2025

When (unintentionally) trying to set one texture as the composite texture of another, which itself is the composite texture of the first, a stack overflow occurs leading to a crash: in UTexture::Pos ...