Not called navigation's destination via BottomNavigationView after invoking navController.navigate()

Question

I have an activity and 2 fragments bound to a navigation system. So, I have 2 destinations.

If I switch destinations via the BottomNavigationView-menu - it works fine!

But if I call navController.navigate(destination2) from destination1 I can't return to destination1 via menu until click back button from destination2.

MainActivity:

...
override fun onCreate(savedInstanceState: Bundle?) {
        setContentView(R.layout.activity_main)
        super.onCreate(savedInstanceState)
        
        // -- setting a navigation
        val navView: BottomNavigationView = findViewById(R.id.bottom_navigation)
        val navHostFragment = supportFragmentManager.findFragmentById(R.id.nav_host_fragment_activity_main) as NavHostFragment
        val navController = navHostFragment.navController
        navView.setupWithNavController(navController)

}
...

NavGraph.xml:

<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/navigation"
    app:startDestination="@+id/navigation_frag1">

    <fragment
        android:id="@+id/navigation_frag1"
        android:label="DESTINATION-1"
        android:name="com.my.app.fragments.Fragment1"/>

    <fragment
        android:id="@+id/navigation_frag2"
        android:label="DESTINATION-2"
        android:name="com.my.app.fragments.Fragment2"/>

</navigation>

Fragment1.kt:

override fun onCreateView(
    inflater: LayoutInflater,
    container: ViewGroup?,
    savedInstanceState: Bundle?
): View? {

    // -- fragment view
    val view = inflater.inflate(R.layout.fragment_1, null)
    
    // -- navController
    val nc = requireActivity().findNavController(R.id.nav_host_fragment_activity_main )
    
    // -- call destination2 via txt-button
    view.findViewById<TextView>(R.id.callBtn).setOnClickListener {
        nc.navigate( R.id.navigation_frag2 )
    }
    return view
}

I hoped to exist a transparency between switching destinations via menu and programmatically way. How to achieve this?