Are you a subscriber to Hubitat's new Remote Admin service, and, if so, do you have it for both hubs? (EDIT: Nevermind, one subscription works for all your hubs...I was confusing this with Hub Protection.) If not, what you're describing is normal: unless you use another solution, like VPNing into your home network, then the admin interface (e.g., your hub's IP address in a web browser--whether you do it manually or use the app or Portal/Find site to help you find it) is only accessible from your local LAN. This does not mean that you can't view or control devices when when away; Hubitat Dashboard (and similar third-party solutions) can do this if you set them up.
If you are subscribing, then something else is wrong. Someone may have more ideas in that case. But otherwise, I'd verify the above--notably, whether this hub is enrolled (if that was your intent).
