@YTCreators Your custom thumbnails are atrocious. I'd prefer to see what the creator had in mind. @mrsundaymoviespic.twitter.com/yntPJyyeXT
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Looks like you're in a small and brief experiment (.3% of viewers for a few weeks) so you're seeing auto-generated thumbnails instead of custom thumbs. This is part of an effort to test/improve auto-generated thumbnails for the many creators that use them:https://goo.gl/A7oDmr