Well, everyone says that you can't propagate thin leaved aeoniums from leaf. Most people know that you can propagate haworthii and other fatter leaved aeoniums from leaf.

But heres and Aeonium Goochiae from leaf!

Yeah, sometimes that's as far as it gets. I don't see a new rosette. It's much easier to get a rooted leaf than a new plant. Patience, this might just work out, but the key is that light has to hit the base of the leaf there where the bud is. You can't bury the base of the leaf or all you get is a rooted leaf, or at least that's my experience.

Maybe the same character like Hoya kerii, can grow roots but not new rosette