Cannot access channel ID, this is feed – https://www.googleapis.com/youtube/v3/search?q=richardflintphoto&key=AIzaSyCEYasna_GhdDZ-Im6evlLEwE4ojhvt6nI&type=channel&part=snippet&order=date
No videos to be found – https://www.googleapis.com/youtube/v3/channels?key=AIzaSyCEYasna_GhdDZ-Im6evlLEwE4ojhvt6nI&forUsername=richardflintphoto&part=snippet&maxResults=50&order=date
1
Gallery youtube does not seem to have any videos.