IOS, previous next controls

Hi Martijn
this is wonderful work you guys have done. Here is the same problem, I am facing.
When the iphne is locked, I cant see the next previous controls. I am attaching two pics, one from one app i am building using mediamanager and second is some idownload app. You can clearly see it doesnt display the next prvious controls, and also few other controls like playlist. This is how I have set the queue.

List list = new List();
list.Add(new Video
{
DisplayName = "ElephantsDream",
VideoSource = "https://archive.org/download/ElephantsDream/ed_hd_512kb.mp4"
});
list.Add(new Video
{
DisplayName = "BigBuckBunny",
VideoSource = "https://archive.org/download/BigBuckBunny_328/BigBuckBunny_512kb.mp4"
});
list.Add(new Video
{
DisplayName = "Sintel",
VideoSource = "https://archive.org/download/Sintel/sintel-2048-stereo_512kb.mp4"
});
list.Add(new Video
{
DisplayName = "Sintel2",
VideoSource = "https://archive.org/download/Sintel/sintel-2048-stereo_512kb.mp4"
});

list.Add(new Video
{
DisplayName = "Mp3",
VideoSource = "https://file-examples-com.github.io/uploads/2017/11/file_example_MP3_700KB.mp3"
});

await CrossMediaManager.Current.Play(list.Select(a => a.VideoSource).ToList());

Thanks