In case someone else runs into this problem, here’s how I resolved the issue:
- Deleted the custom domain config in Auth0 for the ‘stuck’ domain
- Created a new CNAME DNS entry foo.dionny.dev (throwaway) and configured Auth0 with this domain. This verified successfully after about 3 minutes.
- Deleted the throwaway custom domain config in Auth0
- Deleted the CNAME DNS entry for login.dionny.dev, re-created the custom domain config in Auth0 for login.dionny.dev
- Finally, re-created the CNAME DNS entry for login.dionny.dev. This verified successfully after about 3 minutes.
Much better than waiting 48 hours 