losing materials

i’m exporting a model from cinema 4d to unity as an fbx 2010 file, it has several materials in c4d, but when i get get the model out in unity it only has one material, is it supposed to be like this?

Anyone?

when i use fbx 6 i get all the materials, but my mesh is all twisted and messed up for some reason…

hmm, i think the problem is in cinema4d, i try to make a simple cube, then i apply a material and save as fbx 2010, when i try to load the file again the material is gone…