Hello Geez.
I went to see if the issue still persisted in the current experimental version (1.2.0.52), and I was still able to reproduce it. I'm guessing that it could have been fixed internally before you tried to reproduce it, so I will provide an update if the issue is still present when the next update releases.
Respectfully,
Commander_Falcon

@Geez
I tested to see if this issue is still present, and I can confirm that it is still present in the latest experimental update (1.2.0.66). Here is also a more detailed explanation of the issue just in case there was a misunderstanding of what the issue is: when you select an arsenal box (the ones listed from the main post), they lack the transparent preview mesh to show the orientation of the asset before it is placed. In the original video, I showed that the preview mesh was absent for the arsenal boxes. However, I also showed off the weapon rack at the end to illustrate what the preview mesh should typically resemble. Additionally, here is video proof showing off that the issue is still present in the current experimental build of the game:

Additionally, here is a video showing off how the arsenal preview mesh should look like, and how it currently works in the stable version of the game (1.1.0.42):