The Bug:

Horses', donkeys', and mules' tail-wagging animations aren't simultaneously displayed for all clients.

Steps to Reproduce:

1. Get two players and label them "Player A" and "Player B".
2. Have any player summon a horse by using the command provided below.

   /summon minecraft:horse ~ ~ ~ {NoAI:1b}

3. Get both players to look at the tail of the horse and take note of when it waggles.
4. Have both players compare their results.
5. Take note as to whether or not horses', donkeys', and mules' tail-wagging animations aren't simultaneously displayed for all clients.

Observed Behavior:

Horses', donkeys', and mules' tail-wagging animations are displayed at different times for each client.

Expected Behavior:

Horses', donkeys', and mules' tail-wagging animations would be simultaneously displayed for all clients.