Armor doesn't render on player when game is minimized and restored

Summary:
When Minecraft is minimized and restored, armor that the player is wearing does not render until it is switched with a different type of armor.

Steps to Reproduce:

1. Equip any type of armor.
2. Minimize Minecraft and restore it.
3. Look at the player in the inventory or in third-person view.

Observed Results:
The armor does not render on the player.

Expected Results:
The armor should render on the player.

Keywords for search: armour invis invisible invincible paper doll minimise resume show appear 3rd person

Issue reported on Windows 10 and Android, both when resuming from a "saved" state.