Foot Placement Node does not account for Mesh and Actor Scale

UE - Anim - Runtime - Anim Blueprints - Jun 17, 2025

When scaling down the character in the Game Animation Sample to 0.1 (Actor Scale or Mesh Scale), the lower body becomes crouches, not taking into account the difference in pelvis and foot difference ...

Water is missing or appears in wrong places due to incorrectly rendered WaterInfoTexture.

UE - Rendering - Graphics Features - Jun 16, 2025

Water is missing, appears in strange blocks, or appears in wrong places due to incorrectly rendered WaterInfoTexture. The WaterInfoTexture is part of the WaterZone actor. ...

Initialize_AnyThread and CacheBones_AnyThread can be called multiple times on Saved Pose nodes in linked anim graphs

UE - Anim - Runtime - Jun 13, 2025

Initialize_AnyThread and CacheBones_AnyThread can be called repeatedly on sub-graphs below Saved Pose nodes when they are part of a linked anim graph and the main anim graph has yet to be initialize ...

Arrays in UMaterialEditorInstanceConstant are not updated

UE - Rendering - Architecture - Materials - Jun 13, 2025

Any UPROPERTY TArray added to UMaterialEditorInstanceConstant will not cause UI updates when elements are added or removed. This is caused by the custom validator created in FMaterialInstanceEditor ...

New material translator: Switch statement not derivative aware

UE - Rendering - Graphics Features - Jun 13, 2025

Analytical Derivatives are not calculated properly when using UMaterialExpressionSwitch. Disjoint UVs in screen space result in large jumps in the derivatives, which can cause artifacts as the wrong ...

Dithered LOD transitions sometimes briefly flicker to the next LOD before fading

UE - Rendering - Graphics Features - Jun 12, 2025

When dithered LOD transitions occur, a brief flash of the next LOD level is first shown on the entire mesh after which the current LOD fades to the next (or previous) LOD. The flashing behavior only ...

Pasting a folder on the Outliner while LightMixer and ViewChanges windows are open/docked crashes the Editor

UE - Virtual Production - Tools - Jun 12, 2025

When both LightMixer and ViewChanges windows are open, pasting a folder into the Outliner crashes the editor. For more detailed steps, refer to the Steps To Reproduce section. This happens whenever ...

Dithered LOD transitions do not work when the camera's field of view changes

UE - Rendering - Graphics Features - Jun 12, 2025

Dithered LOD transitions do not work when changing the camera's field of view and cause artifacts when both the FOV and camera distance to the object are changed simultaneously. ...

Static lights become stationary after toggling visiblity of level in packaged build

UE - Rendering - Graphics Features - Jun 11, 2025

In 5.5, there is a regression with baked lighting where static lights become stationary lights when a level is hidden and then made visible again. This happens in packaged builds and shows up as sta ...

Interchange Runtime .glb Import Crash When Packaged

UE - Editor - Content Pipeline - glTF - Jun 10, 2025

The runtime import process works fine in editor, but fatal error when trying to do so with packaged build of project. My function that calls ImportAsset():bool UMeshLoader::RequestMeshLoad(FString ...