I tried to reply to the other thread about the pathfinding problems, but it would not let me press the continue button and it did not publish my post that I saw.

I also have problems with the tour pathfinding algorithm consistently in the first museum.  I have not set up tours in my other museum yet to know if it persists across museums. .   There have been some other threads discussing pathfinding issues in a TPM Facebook group as well.

Sometimes creating the tour will show a strange path right off the bat, and sometimes I can get a good path to start, and then after some gameplay, it'll change.  I don't know what causes the game to remake the paths, but it may be either a change of staff (if someone goes on break), or if I upgrade one of the exhibits. 

Once the game gives me an overly complicated path, deleting the tour and remaking it will not change the wrong path. I have to move one of the displays to "reset" the pathfinding.

I"ll upload four screenshots.   Two will show the path I started with, and then the next will show what the game changed it to after.  On one set of images, I did end up moving a rock decoration to see if that was the problem, but it kept the strange and overlong route.  I never bothered to move the decoration back though.  I reset it by changing the orientation of the footprint display, then changing it back.