Hey @TeamYouTube Why do I get this error message when I try to upload a custom thumbnail?pic.twitter.com/q4BSMIOA2Q
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When I tried it on desktop I reviewed that same error message. But once I switched over to YT Studio it took the uploads of the custom Thumbnails. This error is the first time I've seen it happen on Desktop in Creator Studio.
Thanks for the info. Which browser are you using on the desktop? Have you tried clearing the browser's cache & cookies to see if that does the trick for you? Here's how: https://goo.gl/K9Gr3E . Keep us posted.
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