Horse disappears at start

Me to be on my horse:
I was on my single player survival world and I exited and saved while on a horse and when I got back on my world I was on the ground and my horse was not anywhere to be seen.

I wasn't on my horse and it was gone

Steps to Reproduce:
1. Im not sure if it had anything to do with my horse armor the horse was wearing but I had a saddle and iron horse armor on.
2. Tame and get on horse and put iron horse armor on and a saddle on.
3. Exit and save while on the horse and come back.