Bug description
When players die wearing a MWC custom backpack or vest, the backpack or vest will be dropped on the ground and will despawn.

Steps to reproduce the issue

1. Wear a backpack or vest
2. Die
3. Observe
4. Expected behavior
5. Backpacks an vest placed into the corpse inventory

Log files
N/A

Versions

Minecraft version - 1.12.2
Forge version - 14.23.5.2859
Mod version - Newest
Other mods
Happens with just Corpse and MWC

Screenshots (Optional)
Screenshots of the issue.

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