I have created a profile with both Country dropdown and State dropdown on it.
When I Preview the profile, the State selections correctly change when I change the country.
However when I go to the live profile page (even when logged in Admin) the State dropdown does not change. For example changing from United States to Canada, will leave all the US states in the dropdown.
Checking the developer console, I see a bunch of jquery errors showing up, such as this:
Using WordPress v6.0.1 and CiviCRM v5.50.3