When a piglin is dancing, targeting or looking at an item, the chestplate the piglin is wearing does not adjust to the piglin's pose

Also affects:

• Piglins loading crossbows

• Piglins walking backwards with a loaded crossbow

In 20w10a

In 20w11a

In 20w12a

In 20w13a

Brenden Scott Hand is correct.

It's not just chest plates.  If you use the "sleeve" area of the the texture (same location as any other player-shaped mob-- including player skins), the sleeve animates properly with the arm, except when doing the "staring at gold" animation. 

Also when they're dancing and targeting.

I was curious and looked at the source code.
The arm pose animation is:

public enum PiglinArmPose
{
  ATTACKING_WITH_MELEE_WEAPON,
  CROSSBOW_HOLD,
  CROSSBOW_CHARGE,
  ADMIRING_ITEM,
  DANCING,
  DEFAULT;
}

This suggests that crossbow charges and holds could occur as well, but has anyone reproduced these?

This is just my opinion, but if this also happens with Piglin's crossbow animation, then this issue should be combined into one. If not, perhaps these issues should be individual issues.

Affects 1.16 pre2

The outer layer of the Piglins are still not correctly aligned to any animations outside of walking or idling.