Seconds of black screen at the end of media

Hello, How can I get rid of the seconds of the black screen at the end of media before it loops back to the beginning? The slide itself does not have a black slide, it is always at the end of the media file before looping to the beginning will have that split second of black screen. It is noticeable that the slide is going to loop which is not a smooth transition. Thank you.

There always will be short blink when whole layout reloads - when the region with the longed duration end.

What kind of media is it please? Is there only this one media file on the layout?