horses and other mobs and moving strangely in fenced areas and crowding each other out.

I have created a barn with fenced areas for each of my animals. At first they were fine but as I left them in there longer they began getting stuck going in one direction once I got more than one animal in a fenced area at a time. It is particularly noticeable with my horses. They are all going in the same direction or trying to face each other and trying to stack in place. I tried to move some of them away with a lead to see if it would break their movement but they just went right back to the same corner when I released them. It’s kinda weird that I made this whole area for them and because I need a fence for them they are all glitching and trying to go in one spot the whole time. My friend said she had a similar thing happen on Xbox. Even other mobs are having a hard time moving around, it’s like they aren’t aware of each others existence in the game which isn’t the best I’m guessing.