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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"Yet again we've decided to silently make changes to YouTube that rob content creators of their ability to share their videos with their audience, even if it's in minute ways. We did not ask for the creator's permission, nor did we care. Thank you, have a nice day" - YouTube