Thanks for your patience, the 500 error is now fixed!https://twitter.com/TeamYouTube/status/980889488531521536 …
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Thanks for the screenshot! Have you tried clearing your browser's cache and cookies? Learn more: https://goo.gl/dwzcyo . Also, does this happen across devices or browsers? Keep us posted.
Yes It Does happens Across my Android and browsers (Using google Chrome now)
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