@TeamYouTube - After I enter a comment, YT only shows a loading sign (throbber). The comment is nowhere to be seen. It's still like that now. This has been happening for the past 2 days.pic.twitter.com/xPtTKjs4MK
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They do not share code, they have an entirely different back end. The only common thing might be however is both could potentially be using AWS, I don't know.
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