Duct Obstruction 27 object defaults to "Rise"

[TLOTrike]

I'm using ArchiCAD 28 Studio on Windows 11 and have modelled the ventilation ductwork for a house.

Everything works fine except for the Duct Obstruction 27 object always defaults to "Rise" even after you select "Drop" anyone know of a fix?

Only thing I can think of is convert it to a morph and flip it over but I would prefer a fix to the GDL code if possible.