Leather armor improperly renders on armorstands

Partner Rank: 4

Verification builds: Beta 1.10.0.3 (1662239)

Summary: Leather armor improperly renders on armor stands. UV problems. Incorrect geometry rotations.

Repro Steps:

1. Download Cruise Ship Roleplay (Everbloom Studios) from marketplace & create new world.
2. Turn on Show Coordinates & Activate Cheats.
3. Navigate to -793 37 678.
4. Observe surrounding 5 armor stands.

Observed Results: Armor stands are rendered improperly.

Expected Results: Armor stands are rendered as previously in public published versions of Minecraft.

Screenshots/Videos attached: Yes

Notes: Possibly related to MCM-512.