I can't be the only person this is happening to.
If I warp to a region post, and any of my dogs/cats/horses (including non-portable horses) are standing within a few blocks of me, they all tend to come with me. No, I don't want my horse on top of some distant region post. Sometimes they warp back, sometimes not.
On the other hand, I'm having trouble getting my dogs, say, to warp with me anywhere else. Like home or something.
There probably isn't an easy fix for this and it's obviously no emergency.