Can you please clarify what you mean by this? (A screenshot would be helpful)
I do not see in the Hosted UI any error shown to the end user that the login failed due to an expired password.
The redirect url does contain the text, but this URL does not actually get handled by the react <Auth0Provider> component and only shows a white screen before my application calls loginWithRedirect and brings them back to the starting login screen (with no error message)
example URL: https://{my-server-domain}/?error=access_denied&error_description=Your%20password%20has%20expired.%20%20Please%20reset%20it.&state={state variable}