Android Navigation Architecture not navigating when phone screen is OFF

I have the following architecture in my project:

MainActivity layout:

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <fragment
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/my_nav_host_fragment"
        android:name="androidx.navigation.fragment.NavHostFragment"
        app:navGraph="@navigation/nav_graph"
        app:defaultNavHost="true"
        />

</android.support.constraint.ConstraintLayout>

nav_graph design:

nav_graph 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/nav_graph"
    app:startDestination="@id/loginFragment">

    <fragment
        android:id="@+id/loginFragment"
        android:name="com.example.LoginFragment"
        android:label="LoginFragment" >
        <action
            android:id="@+id/loginToContentAction"
            app:destination="@id/contentFragment" />
    </fragment>
    <fragment
        android:id="@+id/contentFragment"
        android:name="com.example.ContentFragment"
        android:label="ContentFragment" />
</navigation>

In the LoginFragment, I have the following logic:

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    super.onViewCreated(view, savedInstanceState)
    if(presenter.isUserLogged()) {
        // getNav() returns NavController from the MainActivity
        getNav().navigateTo(R.id.loginToContentAction)
        return
    }

    // init login views etc
}

It works perfectly if the phone screen is turned ON, but (for example) if I deploy build via Android Studio, and phone screen is OFF, it will not navigate to ContentFragment and stay in the LoginFragment. I debugged the situation, and code enters NavController.navigate(R.id.loginToContentAction) and steps into it, but it doesn't actually navigate. Any ideas what might be a cause of this?