Published Facebook Feed can Only be Seen by Self

I'm using sromku to share score from my LibGDX game.

The feed was successfully published, but no one can see it but myself (even when my profile is seen by others).

Code:

public class AndroidLauncher extends AndroidApplication implements FacebookConn {
    SimpleFacebook mSimpleFacebook;
    OnPublishListener onPublishListener = new OnPublishListener() {
        @Override
        public void onComplete(String postId) {
            Log.i("OnComplete", "Published successfully. The new post id = " + postId);
        }
    };

    @Override
    protected void onCreate (Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        Permission[] permissions = new Permission[] {
            Permission.USER_PHOTOS,
            Permission.EMAIL,
            Permission.PUBLISH_ACTION,
        };

        SimpleFacebookConfiguration configuration = 
            new SimpleFacebookConfiguration.Builder()
            .setAppId("410074072507300")
            .setNamespace("sromkuapp")
            .setPermissions(permissions)
            .build();

        SimpleFacebook.setConfiguration(configuration);

        AndroidApplicationConfiguration config = new AndroidApplicationConfiguration();
        config.useImmersiveMode = true;
        initialize(new Jump4Love(this), config);
    }

    @Override
    public void onResume() {
        super.onResume();
        mSimpleFacebook = SimpleFacebook.getInstance(this);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        mSimpleFacebook.onActivityResult(this, requestCode, resultCode, data); 
        super.onActivityResult(requestCode, resultCode, data);
    }

    @Override
    public void submitScore(int score) {
        Feed feed = new Feed.Builder()
        .setMessage("message")
        .setName("name")
        .setCaption("caption")
        .setDescription("description")
        .setPicture("picture")
        .setLink("link")
        .build();
        // Note: the values above aren't the actual values I'm using
        // I only simplified them so my code becomes easier to read

        mSimpleFacebook.publish(feed, true, onPublishListener);
    } 
}

I found a similar case in StackOverflow here.
The OP said the following: