Datasmith error importing materials

The materials are not importing. The first time I imported a Rhino file from datasmith worked fine. But now doing the exact thing, the materials do not import. The model is imported but all the materials and model’s materials display as a gray checker board.
What can I do to fix it?

Hello.

We have a dedicated support channel specifically for UnrealStudio and Datasmith. Please report your issue at the following link: https://unrealstudiohelp.epicgames.com/s/case-community-page

Thank you.