We are running a small experiment where 0.3% of viewers will see an auto-generated thumbnail, instead of your custom thumbnail. We are not removing the ability to create your custom thumbnail, but we hope to gain insights on auto-generated thumbnails for the future.
Replying to @TeamYouTube
One of my viewers expressed concern that he couldn't see the proper thumbnails on videos he's subscribed to, including mine. I asked you before and got no response: what are you even trying to accomplish with this experiment? Other than trolling your users, I mean.
3:29 PM - 30 Jun 2018
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