I have posted, re-checked and reposted multiple times, a preview video for my app. It shows as 26 seconds in the info window on m y Mac. When I load it onto the App Store and it starts to play, it shows 26 seconds. But ... it plays about 21 seconds of it and then stops and the timeline switches from saying the video was 26 seconds long to suddenly stating it is only 21 seconds long. This is cutting off the last of my preview. If anyone has any thoughts, they would be greatly appreciated!