At first, the image was not showing on the IPhone, and I could not find the problem. After a while I decided to install evrything again and made a new video post with the Stream Video Player, and again the same problem...
I did evrything exactly the same as like in your video so I then tried something else.... : deleted the History AND Cookies on the IPhone...
And it worked :-) So...this was the issue
Thanks for reply, evrythings very allright, and when I make some sales, I will get back to you with a PayPal surprise, ok?
Have a nice evening!