That's odd. Do you see any error message? Also, what device are you using to upload the custom thumbnail? Does it happen across devices? Let us know.
@TeamYouTube, when I try to put a thumbnail on a video the option to do that doesn't show up. Any tips?
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Mobile (android) No error message so far. I cannot get on the website to try that out because it sends be right back to the app.
End of conversation
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