SKP Import - Materials for certain groups appear black in Path Tracer when using Keep Hierarchy

Reported by a client in SF [Link Removed]

When importing SKP files using the Keep Hierarchy collapse mode, some imported objects in Groups inside SketchUp will appear black in Path Tracer.

Appears to be the same problem as [Link Removed] except affecting direct file import.

Does not occur in Collapse All or Collapse by material modes. Does not occur in TM 2024.1.2. Does not occur with Datasmith Direct Link imports.

Download client file from SF [Link Removed]
or Box [Link Removed]

1. Open TM 2025.1
2. Import the .skp file as Geometry and set the Collapse method to Keep Hierarchy
3. View the doorframe in Path Tracer

Result: The doorframe will appear as a solid black, regardless of material.

Use the Collapse All or Collapse by Material mode or explode the group in SketchUp.