Hi All,
We have some issue with Revit 2013 /FBX/Max 2013 workflow.
Basically if you are using custom curtain wall panels and include mullions and glasses in the same panel, you will get the same layer in Max even if you assign different materials. It works fine if you are using curtain wall system(system glass and system mullion). This is serious issue for Revit 2013 (not to mention the slowness of the materials edit table) please let me know if you have the same issues.

Thanks.

Ngoc