Necessary components for layered clothing to work on a rig?

So I started playing around with meshed clothing, although I can’t get it to work for my rig.

I tried generating a new one through the animation editor (same body type as my StarterCharacter) and it works on that one?

Are there any specific things a character model needs to have in order for it to work? I thought of just transferring everything over from my StarterCharacter into the fresh rig so it works, but it’d be tedious.

Thanks for any insight.