@TeamYouTube what's with the not being able to upload thumbnails when uploading the video, it shows me a error all the time, so I have to go back to the video and change the thumbnail after uploading it.
I've been uploading videos for 3 years on YouTube now, I do know how to upload thumbnail. The problem is with YouTube which isn't allowing people to post thumbnail when uploading the video, I rather have to do it on edit video page after uploading the video on Google chrome