Sequencer - if you set the Take Separator to - rather than _ the New Take naming will mess up

UE - ACT Character - Sequencer - Jun 9, 2026

When using a non-default take separator (eg "-") the "New Take" option produces a malformed proposed name for the take. ...

MRG - Potential issue with graphs being duplicated in game builds

UE - CAPT - Color Pipeline and Rendering - MRQ - May 22, 2026

Audi has [Link Removed] saying they cannot duplicate graphs in a game build. They are off launcher, not a custom build. Slack thread [Link Removed] ________________________________________________ ...

Crash with SceneCapture DepthPrepassOptimization enabled

UE - Rendering - Architecture - May 22, 2026

USD Stage - Import loses UV on a skeletalmesh with animation

UE - Editor - Open File Formats - USD - Apr 28, 2026

https://forums.unrealengine.com/t/usd-import-issue-when-trying-to-import-skeleton-with-animation/2718449 I put another png has the user forgot to add theirs. ...

Hair Shadows Not Affecting SSS Back Scattering (Subsurface Profile)

UE - Rendering - Features - Mar 30, 2026

Groom strands do not appear to correctly block transmitted light for Subsurface Scattering Profile Materials. In some cases, not only will they not block the light, but can instead lead to more ligh ...

Issue with r.SkyAtmosphere.TransmittanceLUT.UseSmallFormat

UE - Rendering - Features - Mar 30, 2026

When "r.SkyAtmosphere.TransmittanceLUT.UseSmallFormat=1", some values for the Sky Atmosphere at some directional light angles can lead to the sun disk being cut off, and taking on a chord shape. A ...

Crash when switching from Lumen visualization to raytracing visualization

UE - Rendering - Features - Mar 27, 2026

When switching from Lumen visualization to raytracing visualization via the console, the editor can crash to desktop. The crash appears to happen deep within the driver libraries, and does not trig ...

Editor crash in HairStrandsMeshProjection.cpp when spawning actor with Groom Component bound to skeletal mesh

UE - Gameplay Features - Character - Mar 23, 2026

The editor crashes with an assertion failure when placing a Blueprint actor that contains a Groom Component bound to a MetaHuman skeletal mesh. The crash occurs in AddHairStrandInitMeshSamplesPass d ...