I purchased daniryastudio.com directly through Railway (shows under Workspace → Domains, auto-renew on, DNS managed by Railway's nameservers). It currently shows status "Not connected."

My service Danirya (project: accurate-alignment) is deployed successfully and has a working service domain: danirya-production.up.railway.app

When I try to add daniryastudio.com as a custom domain on this service (Settings → Networking → Add Custom Domain, port 8080), it immediately returns "Not available" — with no further explanation.

Steps already taken:

Confirmed the domain isn't attached to any other service in this or any other project/workspace

Confirmed the service domain exists and the deployment is live/successful

Retried adding the custom domain multiple times after confirming the above

Checked the Domains page directly — no visible "connect to service" option there either

Project ID: da5b7ce4-d567-437e-9e95-2f3e5ac0cdd6

Domain: daniryastudio.com

Service: Danirya

Can you check on the backend why this domain won't attach?