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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What ethics? LOL Youtube Grand Masters are doing everything for money. They don’t give a fuck about creators or the people from whom they earn their ad dollar buys. Youtube is run by bottom-feeders who don’t understand anything but the 
they eat. Excellent reply, thank you!