Has anyone else noticed @YouTube every now and again change thumbnails of "popular" videos like music or viral classics? I've always recognised thumbnails and noticing them change with that same *something-something-million views* is interesting. 
Replying to @AvatarLiger
We'd like to help. What device are you on? Also, send us screenshots for us to look into it better. Thanks.
1:26 PM - 17 Nov 2018
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