I had one very strange case which is difficult to reproduce: I had tamed an animal, set it to follow. At Hideout it managed to get inside the area which is surrounded by platforms. I had set its home to this location. Then I stabled it into the stable called Four.

As soon as I selected "show" It walked outward of the stable, back to the location which I had set its home location. It simply passed the platforms as if they were not there. But it was still listed in the stable as being in it. Please see screenshot.
Click image for larger version.  Name: Screenshot_2020716_8_53_22 stabled animal outside of stable.png  Views: 522  Size: 1.53 MB  ID: 750

If I can reproduce this case I will let you know.