Minor Isometric Walls near Hidden Doors/Sliding Walls don't attach.

[The Grim Sleeper]

First off, apologies about the shitty quality of the original bug report. Critical information is missing! (also the tread tags as you mentioned. I am very new to bugs.)

I failed to specify that the bug occurs with reinforced walls, at odd angles next to hidden walls.

I've found 2 problems.
1) When you construct a hidden door in a normal wall, next to a reinforced wall segment, that reinforced wall segment will have graphical problems afterwards.
Picts:
Example 1. Note how, in the AFTER picture, the T-shaped reinforced wall is now L-shaped:
Spoiler!

Before:

After:

Example 2.
Spoiler!

Before:

After:

2) When you construct a hidden door in a reinforced wall, the graphic for that hidden door will be for the normal hidden door.
Spoiler!

Before:

After:

The normal hidden doors next to normal walls are perfectly fine.
Spoiler!