Materials Change After Updating Geometry

[V.G.M.]

Hi all,

I'm new to keyshot and I'm having a bit of trouble with it when importing from Rhino. Every time I try to import new geometry, some layers get their materials switched. For example I have a layer for steel parts and a layer for glass parts and every time I update the model the materials or each layer switches with the other one. Other layers just loose their assigned material. Does anyone know what the problem might be? I had problems with grouping objects of different layers but I un-grouped everything and I still get the same problem. Any advice or help is more than welcomed.
Thanks.