Not that this solves your problem, but I don;t think that the leaf style you are using has a glass surface defined. If you try switching to a different panel, such as style 5 in the same door, the glass appears.
I am sure someone more versed in AC than myself can direct you to a solution.
Erich
AC 19 6006 & AC 20
Mac OS 10.11.5
15" Retina MacBook Pro 2.6
27" iMac Retina 5K