Why I can't send data from child fragment to parent fragment?

Question

I have a parent fragment with 2 children fragments (home, detail).

Inside the parent fragment, there are 2 button to change both children fragment: btn_home and btn_detail.

When I click the button in the Home fragment, btn_home_button, the fragment will change to Detail fragment, and when clicking on btn_detail it will change color.

When I click btn_home to return Home fragment, it works. When try on click in Home fragment, btn_home_button, to change the fragment it works work too. However, the btn_detail button doesn't change the color.

// this is home fragment, there is button to click
//change fragment
//send data to parent fragment to it know and change button color in parent fragment
private void clickButton(Button btn, int distinguish) {
    Bundle bundle = new Bundle();
    btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            bundle.putInt("key", distinguish);
            getParentFragmentManager().setFragmentResult("requestKeyFromButton", bundle);
            changeFragment(DetailFragment.class);
        }
    });
}
//this is parent fragment 
// it receive data form Home fragment
// change button color
private void receiptDataFromMainHome() {
    Log.d("current", "loaded again");
    getParentFragmentManager().setFragmentResultListener(
        "requestKeyFromButton", 
        this, 
        new FragmentResultListener() {
            @Override
            public void onFragmentResult(@NonNull String requestKey, @NonNull Bundle result) {
                Log.d("current", "receive data");
                if (result != null) {
                    int distinguish = result.getInt("key");
                    if (distinguish > 0) {
                        Log.d("adad", "1: " + distinguish);
                        choseButtonChange(btnPlaylist, distinguish);
                    }

                }
            }
        }
    );
}