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
I want a 100 page essay about what made you think this is a good idea, or even a good feature
5:12 PM - 28 Jun 2018
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