Slight pathing issue (under rather extreme conditions :D)
See screen, entrance is far to the left, they would have to run into the mountain and then a spiraling staircase up into the tower to rech the courtyard. They keep running in front of the wall from left to right though. Buck and Pooter are the ones, saw both doing it now, solves itself after a longer while (they ran into the main entrance). Should have been able to reach wall from back side as well though (2nd screen).
Slight issue in extreme case, not sure this is worth to try fixing but i thought id report it :)
Edit1: Ok, they ran into the base to eat/sleep actually.... keeping an eye on it.
Edit2: Yea they continued to do it after, sending them manually in the right side courtyard solved it then
Version:
0.23.0.69
Fixed In: