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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Dear @YouTube, please add a beta program option that people may opt into and know exactly what they're testing instead of forcing this on random users. We want to have at least some control over what we see.