I realized, that on my domain host it had the original DNS still there with the new, which I think stopped my custom domain from going up.
Though... I didn't document my A & AAAA,
When I re-run the code I get the error Error: Hostname already exists on app
And am struggling to get the certs to reappear (I'm sure it's a simple command) or I have to remove it and then reinitiate it (which I also couldn't find clear direction on)