Materials are mixed after Asset Importer

I’m trying to import this model
3dwarehouse.sketchup.com/model. … 994630e5c6
with command

But all materials are mixed up.
AI also somewhy cannot find textures.
What’s wrong with me/model/AI?
Can somebody experienced help me?

Thank you.

Not sure exactly what’s your problem, but if you want to use several materials for a single model, Blender’s Urho exporter has an option to create materials list file that automatically set them up in the correct order when loaded with Urho.