That's odd. Have you tried clearing the cache/cookies of your browser and checking it on Incognito mode. Let us know if it fixes things for you.
@TeamYouTube @YouTube Ummm what is happening? My video won't play (just shows a black screen) and when I scroll down then up this happens.pic.twitter.com/9EGVebpXUS
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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