The grid tool and the Mesh tool do not have IFC capabilities. This is problematic.
Also, if you have 'only visible layers' set in the translator,the normally hidden SEO layer does not go through. Even when shown, the relationship between SEO targets and operators is lost.
Erika
Architect, Consultant
MacBook Pro Retina, 15-inch Yosemite 2.8 GHz Intel Core i7 16 GB 1600 MHz DDR3
Mac OSX 10.11.1
AC5-18
Onuma System
"Implementing Successful Building Information Modeling"