Uh-oh! Have you tried these steps to save the thumbnail: https://yt.be/help/STpv ? Also, let us know if you've tried any troubleshooting steps to get this sorted.
@TeamYouTube been trying to update my thumbnail for 20 min now. No matter which device I use, same thumbnail.
Says thumbnail updated. Lies.
Why? Why are you the way you are??pic.twitter.com/PNhCTpyiat
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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