I use Cosmetica with it and when i load the Npc with my name they get the cosmetics im wearing.
When i start making the next npc the other loses its cosmetics thought :1 It keeps it untill i change mine. Then it loses them.

Platform(s)

• Fabric

Environment(s)

• Singleplayer

Versions

• Minecraft 1.19
• Taterzens 1.11.1

Expected behavior
They keep the cosmetics

Are cosmetics dependant on your name? If so, I don't really know what I can do 😐