consider

class AquariusProApp extends StatelessWidget {
  final LocalStorage cLocalStorage;
  final Database cDatabase;

  const AquariusProApp(
      {super.key, required this.cDatabase, required this.cLocalStorage});

  @override
  Widget build(BuildContext context) {
    myDebugPrint("in AquariusProApp build");
    return MultiProvider(
      providers: [
        ChangeNotifierProvider<Authenticator>(
            create: (context) => Authenticator(
                cDatabase: cDatabase, cLocalStorage: cLocalStorage)),
      ],
      child: MaterialApp(
        title: kProgramName,
        theme: aquariumManagerTheme,
        home: Consumer<Authenticator>(builder: (context, authenticator, child) {
          myDebugPrint("in consumer");
          if (authenticator.isLoading) {
            return const Center(child: CircularProgressIndicator());
          } else if (authenticator.hasToken) {
            return HomeView(cAuthenticator: authenticator);
          } else {
            return AuthenticatorView(cAuthenticator: authenticator);
          }
        }),
      ),
    );
  }
}

I change variables in the ChangeNotifier Authenticator class and call notifylisteners:

void resetAuthentication() {
    // we clear the saved token and reset the screen to the login page
    cLocalStorage.deleteSecureStorage(kAuthenticationInfo);
    _isPasswordBad = false;
    _isLoading = false; // we are NOT loading; we are headed to the authenticator screen
    _hasToken = false;
    myDebugPrint("in resetAuthentication");
    myDebugPrint("about to call notify 3");
    notifyListeners();
  }

However, the consumer build code is never called from this particular function. Why might this be?

There are numerous references to similar scenarios, but none solves my particular problem here.