I believe the issue you're having is with the GAHH Glass window which is smaller than the Glass window on the OEM top - the only way they could get the top to fold using the existing frame, which differs from the one used by the OEM Glass top.
Oh, I was under the impression that the GAHH top was exactly like the OEM glass window top.
The factory glass top is a 4 bow frame, vs the 3 bow frame that the plastic top uses. In order to make the glass top work with the 3 bow frame, it is smaller. Apparently its difficult to fold a piece of glass in half