stream builder is not updating after navigation

I am using a stream builder to detect if user logged in or not.

 return StreamBuilder<User>(
        stream: AuthService().user,
        builder: (context, snapshot) {
          if (snapshot.hasData)
            return SectionWrapper();
          else
            return Authentication();
        });

and this is the stream I am using

 Stream<User> get user {
    return _auth.onAuthStateChanged.map(_userFromFirebaseUser);
  }
  //create user object based on firebase user
  User _userFromFirebaseUser(FirebaseUser user) {
    return user != null ? User(uid: user.uid, email: user.email) : null;
  }

in the section wrapper, there are 2 buttons that navigates to two different sections of the app, when I use sign out method in one of these sections, the stream builder is not updating, and it requires refresh to update the state.

also i tried to put a button in section wrapper to sign out, it works and update UI before I navigate to one of the sections.

and this is the sectionWrapper() widget tree.

Column(
        children: <Widget>[
          CupertinoButton(
              child: Text('Donation & Selling Section'),
              onPressed: () {
                Navigator.pushReplacementNamed(
                    context, Section1.routeName,
                    arguments: user);
              }),
          CupertinoButton(
              child: Text('Bookstores Section'),
              onPressed: () {
                Navigator.pushReplacementNamed(
                    context, Section2.routeName);
              }),
          
          //works before navigation, does not work after navigation back here
          CupertinoButton(
              child: Text('Sign out'),
              onPressed: () async {
                await AuthService().signOut();
              }),
        ],
      ),

I also tried to use stream provider with consumer and I ended with the same problem.

   class Wrapper extends StatelessWidget {
  static const String routeName = '/';

  @override
  Widget build(BuildContext context) {
    final user = Provider.of<User>(context);
    return user == null ? Authentication() : SectionWrapper();
  }
}

I wrapped material app with a stream provider.

MultiProvider(
      providers: [
        StreamProvider<User>.value(value: AuthService().user),
//other providers
      ],
      child: MaterialApp(