Please help: Can't change material of .dwg import?

[Jutad]

I am usually fine with changin the materials by going to visibility settings- imports and changing the materials.

However I have a file where I cannot change the material no matter what I do. I tried importing it as a family, I tried exploding the dwg, I tried setting the layers to 'color by layer'. It is beyond me

There is another file where I can only change some layers but not the others. So maybe I am doing something wrong.

I would really appreciate some help.

Thanks for your help!.

[Jutad]

 I figured it out!

I just changed the layers name in AutoCad/Microstation to a single digit number, eg: 1.

It works fine now! Who would have thought it was so simple.

Thanks anyway.