Every time I wanted to add another character or another pack, it would say there’s a duplicate I even tried deleting the first one I got and it didn’t work I just kept on saying the same thing. The second problem is that it keeps on making the characters invisible at first, I thought they were music disk but when I tried it, it didn’t work so please fix it also, you should probably just make a texture pack so that way some mobs can become the characters anyways, that’s it