Bro I just socklocked/bricked my entire campaign mission because of the pathing system lol.

It's seriously ruining the game for me, which is sad because it's actually quite good otherwise.

edit: I saved my mission, but yeah this is really bad it took 45 minutes to undo the damage of this brutal pathing system. Getting it sorted out saved the game for me though.

I would check the settings tab (gear icon) for paths and toggle those settings and see if that helps. I'm not sure exactly what I changed (I changed a lot) to fix my issue but something worked.

Once one understands what can(or cannot) be done with the paths, one really sees how powerful and precise they can be.
For more help just search the Planet Zoo videos in steam for path guide. You should find several from me where I show practical usage of paths within buildings that show many techniques for getting the paths to do what we want.