Plugin not appearing in GarageBand

Hi all,
Really looking forward to using this plugin in GarageBand.
I’ve installed the app. Signed in and installed the factory packs.
The app opens and works with a Midi keyboard fine. I can see the component files in the library > audio folder (in vst and vst3 folders). I’ve read that it is an AU and not a VST so I’m trying to put the component in the component folder. I’ve also tried adding the factory pack in that folder.

No luck whatever I do. I’ve loaded other plug-ins and I know where to look in GarageBand. Any idea why this might be?

Thanks all