Yes, we did set AWS public access. Following is one video, my JSON file passed the feed requirement, I can even see thumbnail on my preview, just don't show live, is My JSON ok?
{
"id": "kn2F625BC0",
"title": "Our House For The Weekend",
"content": {
"dateAdded": "2017-09-13T08:08:31+0000",
"duration": 3480,
"videos": [{
"url": "http://d3hzdb1r6xb159.cloudfront.net/kn2f625bc0-our_house_for_the_weekend_main.mp4",
"quality": "HD",
"videoType": "MP4"
}],
"captions": [{
"url": "http://d3hzdb1r6xb159.cloudfront.net/kn2f625bc0-our_house_for_the_weekend-en.srt",
"language": "en",
"captionType": "CLOSED_CAPTION"
}]
},
"genres": ["romance", "comedy"],
"tags": ["comedy"],
"thumbnail": "http://d3hzdb1r6xb159.cloudfront.net/kn2f625bc0-our_house_for_the_weekend-800x450.jpg",
"releaseDate": "2017-09-01",
"shortDescription": "While house sitting for their in-laws, a married couples relationship is put to the test, when they lose the family cat. This freewheeling faux-doc is a hilarious look at sex, love and marriage and house sitting. Starring real life married filmmakers."
},