Rhino 8 failing to find texture files when opening obj or fbx file

I have a purchased model that was developed in Blender. I am using the OBJ file, but the same happens with the FBX file. The file opens in Blender properly. It has a textures folder with subfolders for each major model part, with several different images for each part to display color, bumps, et cetera. I copied all of the subfolders to the same folder as the OBJ file. Rhino 8 is not finding these. The model is rendered grey. How to have Rhino find these files?

On the materials tab, Rhino finds the general material name for each part but is not linking to the images for base color, metallic, and roughness.