Invalid Navigation

[Kessra]

During a heist I noticed a thief trying to steal one of my exhibits. While I have 2 security guards assigned to that particular building, they chose to head for a different break room or fill their needs elsewhere and as such there is currently no security guard in that building. As usual, I tried to drop one of my security guards in that building though the game simply doesn't allow me to due to an "Invalid navigation" error. I expanded the building, tried various rooms and even the guard stand, checked that no zone was assigned to the guard and even that they can use guard posts but everytime with the same result. I even tried to restart the game or load the map multiple times but each time with the same outcome.

https://steamcommunity.com/sharedfiles/filedetails/?id=3454933624

This seems a bit strange to me as this never occurred in my games before. I simply removed now the exhibit before it gets stolen which causes the thief to simply escape. And still I'm not able to drop a security guard in there.

Not sure what's actually causing this. I'm able to drop the guards outside though which at least falsifies my theory that the yet unchecked debris somehow may prevent placing my guards at that location.

While in genera I don't have anything against such thief heists as I always could drop guards nearby so they can deal with those thieves the current situation is a bit annoying to say the least as the game decided to relocate my guards to an other plot even though everything necessary should be nearby and no matter what I attempted it refuses to let other, even unzoned, guards in on this plot.

[Jaggid Edje]

I have the same issue in one building in my Pebberly Heights Museum. The other 5 buildings in that museum are just fine, but in the one specific building almost the entire building gives me the "invalid nav" message and won't let me drop staff. Except for the entry hall.

Why the entry hall is fine and the entire rest of the building is bugged like that, I have no idea.

It's this building in the below screenshot. The part that works fine is the hallway in the foreground that runs across all of the entrances to the museum.
https://steamcommunity.com/sharedfiles/filedetails/?id=3454845612