bottom navigation view doesnt shows fargment unless double click

i fixed the previous error but now this here. fragment isnt visible if i dont click bottom navigation two times. my code:

activity_main.xml

<androidx.fragment.app.FragmentContainerView
    android:id="@+id/FragmentContainerView"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    app:layout_constraintBottom_toTopOf="@+id/bottom_navigation"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.0"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

<com.google.android.material.bottomnavigation.BottomNavigationView
    android:id="@+id/bottom_navigation"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:menu="@menu/bottom_navigation_menu" />

MainActivity.kt

binding.bottomNavigation.setOnItemReselectedListener { item ->
        when(item.itemId) {
            R.id.home -> {
                replaceFragment(HomeFragment())
            }
            R.id.favs -> {
                replaceFragment(FavsFragment())
            }
        }
    }
}

private fun replaceFragment(fragment: Fragment) {
    val fragmentManager = supportFragmentManager
    val fragmentTransaction = fragmentManager.beginTransaction()

    fragmentTransaction.replace(R.id.FragmentContainerView, fragment)
    fragmentTransaction.commit()
}

Instead of setOnItemReselectedListener you should use setOnItemSelectedListener to avoid "double-clicking".

But you still have to add initial fragment to FragmentContainerView. For example, in onCreate() you can call your replaceFragment() with the fragment that you need to be shown at first.