Hello @TeamYouTube , I would like to know, why are not the thumbnails of the videos on my channel? What happens is that all my videos had thumbnails, and now they are no longer seen.pic.twitter.com/10DKNkIopT
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Nobody asked for this and nobody likes this. If you want to test things, do it privately on your own computers with test YouTube accounts that you made. Don’t use the public as the lab rats.