Unreal Engine Issues

Skeleton retarget settings are lost when importing/reimporting a mesh with bone hierarchy changes

Importing a mesh that changes the hierarchy of a related skeleton causes the animation retarget settings on the skeleton to be lost. This is because in UInterchangeSkeletalMeshFactory::EndImportAss ...

Rendered panoramas may be overexposed

Reported in SF [Link Removed] Lumen Panorama renders in 2025.2 may appear overexposed compared to the viewport, or when comparing the same render produced in 2025.1.1 This only appears to occur wi ...

Merge Actors (Simplify) is broken with Substrate Shader Models Node

Substrate Materials cannot be baked when Meshes are merged using the "Simplify" method. All textures except for the normal are reduced to a single black parameter. The normal texture produced does n ...

DeltaCompressionBaselineManager needs to update its scope for minimal update

DeltaCompressionBaselineManager needs to update its scope for the case where objects may be replicated but no connections exist. ...

Virtual texture fallback displays in incorrect color space on mobile platform (VT:OFF) Preview

Loading error for editor only BlueprintNativeEvent functions

The editor-only function in the native parent class is not compiled in the game module, which is why we're getting this error. The Blueprint compiler should follow suit during cooking and not genera ...

Custom Depth range is different than Pixel Depth range

Shaders that compare custom depth and pixel depth get wrong output values because the ranges are different. This error is most noticeable over large distances. The difference in ranges is due to t ...

Time not getting set when editing in the Key Details property editor

[Mobile/Forward Rendering] PlanarReflection does not work when the reflection plane faces certain directions

Note: This repros on 4.27 and all 5.x versions. When using the mobile renderer and/or forward shading, Planar Reflection will simply not work if the reflection plane normal has components that add ...

Datasmith Archicad - Transform will not resync properly when modifying roof thickness and transforms

Reported in SF [Link Removed] With Datasmith Direct Link from Archicad, when adjusting the roof thickness for an imported roof any adjustments to the transform of the roof will not update on resync ...