Horses glitch through fences and blocks when reload area.

So I have been having an issue for quite a while now with the hitboxes of horses. Sometimes no matter how much room I give the horses, when I reload the area they are kept in or relaunch the world they will just slide through fences and even blocks. I can leave them all firmly inside fences and the second I rejoin the game the horses will suddenly be outside of the area I left them inside. I’ve had them even slide in blocks and suffocate when they should never have been able to in the first place.

If you want to reproduce this issue, just have 2 or more horses in a small area (4 by 4 to 6 by 6) and go to another dimension or leave the game and come back. Normally the horses should both stay inside the fences as they are considered solid blocks, but from my experience at least 1 horse will slide into and sometimes out of the fences allowing them to escape or in some cases where there are blocks on the other side of the fences, they will suffocate.