Sequencer Conditions crash - GarbageCollectionVerification

UE - Anim - Sequencer - Apr 3, 2025

Encountered a crash during the garbage collection phase when using sequencer conditions with subsequence tracks. Specifically, objects appear to break the "Disregard for GC" assumptions. ...

MaterialX texture imports won't import files with the same name

UE - Editor - Content Pipeline - Import and Export - Apr 2, 2025

Hello! When importing .mtlx files that contain textures with the same name (but different filepaths), only the first texture is imported. This seems to be due to the function CreateTextureNode() i ...

Issue when sampling landscape height at a given location using Chaos::FHeightField::GetHeightAt

UE - Simulation - Physics - Apr 2, 2025

This is an issue reported from a licensee: When sample landscape height at a given location, it is likely we interpolate from the wrong triangle. [Image Removed] Details in: [Link Removed] ...

Rect light LTC textures fail to load when cooking with bSharedLinearTextureEncoding enabled

UE - Texture - Apr 2, 2025

When running a build with bSharedLinearTextureEncoding enabled, View.GGXLTCMatTexture and View.GGXLTCAmpTexture are pointing at the black texture fallback, which affects correctness of rect lighting ...

Sky Atmosphere Material Nodes not Correctly Represented in the Surface Cache for Nanite Enabled Static Meshes

UE - Graphics Features - Apr 1, 2025

When nanite is enabled on a static mesh, lighting contributions from Sky Atmosphere material nodes are not incident on the static mesh and no longer present in the overall lighting of the scene. Th ...

Horde server fails to build Docker image

UE - Foundation - Horde - Server - Apr 1, 2025

If you attempt to build the Horde server Docker image right now it fails unless you have some of the layers cached or a nuget proxy/cache that has cached some packages. JetBrains have renamed their ...

Mesh from attached USD fails to import

UE - Editor - Content Pipeline - USD - Mar 31, 2025

UDN customer reported this issue: Using legacy USDImporter, the attached USD throws these ensures ensure(Primvar.Get(&UVs, Options.TimeCode)); ensure(Primvar.GetIndices(&Indices, Options.TimeCode) ...

[USD] Reimport change reference to transient

UE - Editor - Content Pipeline - Import and Export - Mar 31, 2025

https://forums.unrealengine.com/t/usd-reimport-changes-referencers-to-transient/2421831 ...

Excessive RVT page updates with Nanite and ClearCoat or Cloth shading model applied

UE - Rendering Architecture - Mar 31, 2025

There is an excessive number of page updates when a Nanite landscape has a runtime virtual texture material applied to it with a shading model set to ClearCoat or Cloth (instead of Default Lit). The ...

Skeleton mesh with hair strands material will lead to unnecessary draw call submissions

UE - Graphics Features - Mar 27, 2025

Materials with "Used With Hair Strands" enabled will cause Skeletal Meshes to draw twice in the Base Pass. ...