The walking animation of frogs sometimes doesn't play or plays way too slowly when they are moving slowly

The bug

Frogs' legs' animation doesn't play when they are moving slowly.
Camels have been fixed. Checked version 24w38a.

To reproduce

1. Summon a frog.
2. Leash it or splash it with a Slowness IV potion.
3. Persuade it to move by hitting it or holding slime balls.