Thank you very much for the report!
Our developers confirmed that this is a bug with the door object. For metal and commercial doors, there are 3 extra overhang parameters (left, right, upper) for the value of frame-wall surrounding.
When frame widths are set to 0, these values are also forced to 0. Even though they exist, but since they do not appear on UI (except Double Egress Metal Door), they can not be changed to a valid value anymore.
Thus, I have entered it as DEF-6842. The only workaround here, as you already found out, is to Reset the door with its default object settings.
Once again thank you very much for your finding! Please let me know if you have any questions!
Technical Support Engineer