Importing FBX cause white objects!!

Hi-

I’m new both in 3ds max and unity 3d. I optimized a high poly model, group it and import it to unity 3d.

Now a section of model is white and another section has correct color. I tried all import options in unity without success!

I also can’t add a texture or change color because the model consist of lots of separate objects.

I stopped my work since 3 days ago just because of this issue, please help me.

Don’t use groups, attach the objects together (if you want to animate them, use bones). Check your model for flipped faces.