To show this bug, I filmed a video:
https://youtu.be/OqI9pdkuHk8
In the video, I use a simple mod that alters the wanderer start so that I start off in the Police Barracks, to save me the time walking to each location. I use no other mods in this video. The first time I spawn into a Police Barracks town, I spawn into the Police Barracks located in The Pits region. In this town, the squads spawn correctly. Notice how the buildings that the squads spawn in use the "Trashed" interior layout. I restart the game to spawn in a different Police Barracks, and I spawn into the location in Sniper Valley that has the issue. Notice that at this location, the skeleton squads do not spawn, and the buildings have no interior.
I quickly realized that the source of this issue is that the Sniper Valley Police Barracks uses a different building variant than all the other Police Barracks locations. Unlike the buildings used in the other locations, the building type used in Sniper Valley's Police Barracks is missing the "Trashed" interior layout. Looking at skeleton police squads that spawn here in the FCS, you can see why this is significant:

To fix this problem, I made a mod that adds a new interior to the Outpost IV building called "Trashed". After using this mod, the squads in the location spawn correctly. I made a video of my fix:
https://youtu.be/YC9IfSSepzc
I have released a workshop mod that contains this fix. This mod is a part of The Essential Kenshi Patch Compilation, which you can find here: https://steamcommunity.com/sharedfiles/ ... 2367714785