1970s & 80s Half Glass Door is missing geometry

[pompousspaniard]

BEE2 version: 4.40.2

Description of the bug:
Half Glass Door is missing its frames in 1970s and 1980s Old Aperture.

They are physically not there as the player is able to shoot right through the centre of the doors, which is normally blocked.

Portal.2.2021.08.12.-.01.38.54.12_Trim.mp4

Expected behavior:
When closed, the Half Glass Door should have metal frames surrounding the glass. This happens correctly in the 1950s and 60s.

Steps to reproduce:
Create a chamber using the Half Glass Door. In my chamber, I used a button, toggle latch and some lighting for demsonstration purposes, but since the bug is most noticieable when the Half Glass Door is closed, no connections are needed.

Additional information:
Should point out that this bug occurs regardless of which direction the Half Glass Door is facing or whether it's oriented horizontally or vertically.