Arm animation is not executed in certains circumstances. Which are:
Dyeing a sheep, or wolf/cat collar
Shearing a sheep or mooshroom (not fixed, see MC-160896)
Dropping an item (not fixed when dropping from GUI, see MC-160897)
Emptying a water/lava/fish bucket.
Filling a bucket.
Placing a boat.
Throwing an ender pearl, snowball, or potion.
Throwing an eye of ender.
Feeding an animal. (not fixed, see MC-160895)
Making tamed animals sit/stand (not fixed, see MC-160981)
Activating redstone ore (not fixed, see MC-161151)
Crossed circumstances have been crossed out, those who are not are still not present in the game.
Linked issues
relates to 10
Comments 15
@unknown, that's MC-123352.
MC-160981 is another case that could be listed.
MC-161151 is another one
The animation is also missing when interacting with a door while crouching.