I also ran into a few other issues when exporting from revit to sketchup but I was able to tidy these things up in sketchup.
Overall a fairly clean model once inside sandbox. I will need to allocate plenty of time to import the final design of the ten towers into sandbox editor. Additionally I have to model the second facade which is currently tubes as it comprises of simply far to many polygons than I would ever be able to import into Crysis.
Even at this (relatively) early stage working inside sandbox gives a really different feel for the spaces than when working in Revit. I have to find a balance of using the sandbox editor as a design tool and managing my time well so that I dont waste too many hours importing into Crysis over and over again because it really is a time consuming task.

