Horse disappears after dismounting

No matter what biome I'm in, when I dismount my horse he completely disappears. I can still hear him neigh, but he isn't within sight. I can't attempt to blindly hit/ride him either. When I hit 'Escape' and press 'Save and Quit to Title' and then get in the game again, he appears back in the same vicinity of where I left him, but often a little farther as if he walked a bit. It seems almost as if he when invisible until I saved and exited, but I have no potions in the specific world I just started.
I hope you can get it fixed! c: