setSound and set Icon its not work in my flutter app

[risu331]

why set Sound customize and setIcon set doesn't work on my flutter, and this is my payload

$optionBuilder = new OptionsBuilder();
$optionBuilder->setTimeToLive(60*1);

    $notificationBuilder = new PayloadNotificationBuilder();
    $notificationBuilder->setTitle($this->title);
    $notificationBuilder->setBody($this->body);
    $notificationBuilder->setIcon("http://dashboard.getyourorbit.com/storage/image/U3hOy7jL9IQILa8OFoZMV5eSvXZG8RScAeNU8rVi.png");
    $notificationBuilder->setSound("rush.mp3");
    $notificationBuilder->setColor("black");
    $notificationBuilder->setClickAction("FLUTTER_NOTIFICATION_CLICK");
    $dataBuilder = new PayloadDataBuilder();

    if($this->screen){
        $dataBuilder->addData(['screen' =>  $this->screen]);
    }
    $dataBuilder->addData($this->data);

    $option = $optionBuilder->build();
    $notification = $notificationBuilder->build();
    $data = $dataBuilder->build();

    $downstreamResponse = FCM::sendTo($this->to, $option, $notification, $data);

[Yaffar]

I have the same Issue with
->setSound('default');
It's definitely not working, any help would be appreciated