hmmm...you probably need to fix that.
The Black Part is transparent texture, idk why its become Black but, if i switch into Low Graphic mode where 'Shader' is unchecked in the graphic option, the transparent texture is working.
You probably need to fix that, i think.
Eat BANANA ! YAY
I'm assuming you had cel shaded tori set activated and right hand model didn't update properly (because the same happened to my right bicep when I tested the item), try deleting the file manually and redownloading your customs.
I'll forward it to Dranix to see if we can get it fixed.