Map Shirts mod incompatible with Iris

I made a small 1.20.1 mod for Fabric called Map Shirts that allows players to attach and display maps on chest plates. However, whenever I load the mod with Iris I run into a weird issue where the displayed map is ALWAYS the same for every chest plate with a map attached to it. https://github.com/HyperPigeon/MapShirts/

GitHub

GitHub - HyperPigeon/MapShirts: A mod that lets you stick map to ch...

A mod that lets you stick map to chestplates. Contribute to HyperPigeon/MapShirts development by creating an account on GitHub.