just happened, new world, never in offline mode

I tamed two cats at a village and bred them, then went to bring them to my base. They would not teleport to me. They were tamed and not sitting. They seemed to get stuck at a villagers house and wouldn't teleport when I left (I didn't leave loaded chunks). 

They only began teleporting to me when I went to the furthest point while having the village still loaded (chunks boarder), which was over 14 chunks away. Before this points, the cats would remain stationary by the village house even when tamed and standing up.

I saw that this bug was common in 1.16.4, but it seems to have come back. People have brought this up before, and it is said to be resolved back in 2020, but the bug has returned. 

Once you go to the boarder of loaded chunks, the cats will teleport to you, but only once you get to the furthest point. I didn't take pictures (first time reporting a bug, didn't know it was a thing, sorry). I do have the world file.