UPDATE: I got things working between Maya 2015 abd Zbrush4R7. For posterity, here is what I did: Brought maya scene file from 2018 into 2015. Saved it in 2015 as a new Binary file. Tried to use GoZ, got multiple error messages, tried to export as fbx, got error messages, finally when I tried to import as an fbx in Zbrush…