Hi darenjm,
received your mail, and trying to remember how it was resolved, I saw you are also posting here.
So I’ll answer your question here to serve maybe others as well.
As I remember the main issue was at CPanel => Subdomains
Create the new subdomain: choose your name or wildcard
– under “Document Root” it has to point directly to /public_html (nothing before the slash)
that’s it.
Hope it works for you.