Unreal Engine Issues
Unreal Engine Issues
VSM + Nanite Tessellation + Volumetric Fog Shadow leaking while the Directional lighting is rotating
UE - Rendering - Graphics Features - May 25, 2026MRG - Potential issue with graphs being duplicated in game builds
UE - Virtual Production - Tools - MRQ - May 22, 2026Audi 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, 2026USD Stage - Import loses UV on a skeletalmesh with animation
UE - Editor - Content Pipeline - USD - Apr 28, 2026https://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. ...
Geometry collection : Should allow newly broken pieces to go through their own collision detection and constraint solve before the next iteration
UE - Simulation - Visual - Mar 31, 2026Hair Shadows Not Affecting SSS Back Scattering (Subsurface Profile)
UE - Rendering - Graphics Features - Mar 30, 2026Groom 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 - Graphics Features - Mar 30, 2026When "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 - Graphics Features - Mar 27, 2026When 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 - Rendering - Graphics Features - Mar 23, 2026The 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 ...
Material Editor Viewport does not display World Position Offset
UE - Rendering - Graphics Features - Mar 19, 2026The preview Viewport in the Material Editor does not correctly render World Position Offset. It appears that the RenderVelocities pass (which is also drawing the depth for the preview sphere) does ...