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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Just do a beta preview program that anybody can opt in for where you test this stuff instead of just doing it randomly so you can actually get some feedback instead of confusing everyone on your platform