miker,
it is actually one of the intriguing features of AC libraries where you can’t use different door panel sets for each particular door type. I've got no idea why it's been set up so strangely. A long time ago I have asked for a sort of universal set of all door panels that could be used with any of the doors (with full documentation of all parameters for potential GDL programmers who could eventually define new door type using the GS door panel macro). I believe that some steps have been made in that direction already but I am not sure how far GS has gone with that since then.
However, I would call it a bug...
::rk