Summary:

I don't know if it's possible to fix this or not, but the texture of the legs of baby horses is a little glitched) To be more precise - at the junction of the legs and trunk.

Steps to Reproduce:

1. Find or summon a baby horse.
2. Watch the baby horse's legs.

Observed Results:

The texture at the junction of the legs and torso flashes.

Expected Results:

The texture should not flicker.

Video:

Minecraft 2021-02-01 14-29-17.mp4