got this reply from Fabrizio a short while ago... they really work hard with customer's problems and must be congradulated for tireless effort!!
turns out I didn't have the hotspots layer...better read it yourself...
Dear Jonathan,
after a while I found the trouble!
BTW it was our fault... because we should think to any possible ArchiCAD
environment and, just in this case, we didn't think something like this.
The trouble is that in your file the default layer for the hotspot is
missing!!!
When you save as ArchiCAD object, ArchiForma uses the Hotspot default layer
in order to insert some hotspots needed for the object 2D symbol creation.
Usually, there is a default Hotspot layer (like about all the other tools)
but in your case, your PLN file doesn't have a default layer for the hotspot
tool (if you click on the Hotspot tool icon you can see the layer is
missing).
This causes the trouble.
We will upload at
www.cigraph-store.com a new maintenance release in the
next weeks...
Fabrizio Diodati
Architect
Software Development Manager
so there you go, seems everyone got to learn something
yours once again
jonathan