Just found out that if you use FormZ 7 it will not work with Yosemite. However, according to the FZ forum v.8 does work with it. However, if you do use v.8 or are thinking of upgrading from an earlier FZ version to FZ8 you will need to get their FACT export fix plug-in - I don't know if they've included it in the latest version.
Basically if you export a FACT in FZ8 - when importing into EIAS the model came in sans any texture/color - whatsoever. Then when you opened the items material and attempted to access it - you were stuck in limbo and had to force quit out of the program. To circumvent the "limbo" you would first have to drop a texture/material (any texture or material) onto the item or assign it to a master material before accessing it. The plug-in you can get from FormZ for v.8 (again, if it's not already included) will fix the export problem.