Bones that just dont exist?

So I’ve made this scarf thing, and rigged it with bones in blender, and now that ive exported it to studio, most of the bones just dont even appear in the explorer. The bones still exist in the game, and can be deformed, and assigned in an object value, but they just dont exist in the explorer. This is annoying because it messes with one of my scripts.
Heres the scarf with all the bones visible

and heres the explorer
I dont understand this.