Searched a bit, there seem to be problems… but nothing to help me.
I need to export in either .eps or .ai, the WIP seems to do it but the files are unreadable in any other program (Rhino opens them fine again). I got around this by exporting in DXF format, opening in Inkscape and then exporting in .ai or .eps. I could have also done a vectorised PDF to get around this as well. Is this a known glitch or is it me doing something wrong?