Custom domain is opening without https certificate

I recently added and verified a custom domain for my Auth0 account. The app is built on and the custom domain is for instance. When I load the auth domain used in my account it redirects me to app domain, which is expected behavior. I reconfigured my app to use the new auth domain for user logins/signups, and it loads that page correctly, except for the fact that it loads it without an https certificate. The app specifically uses the https SSL in the request, and in the network tab in the inspect element it’s correctly using https in the request, but it’s loading it as an unsecure site. How do I resolve this?