A few questions, what device/browser are you using? Does this happen across devices? Also, share more details(screenshots can be helpful) and we'll see what we can do.
@TeamYouTube Where are the favorites located!? I can’t see my favorites playlist 
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I am using an Apple MacBook Pro (Device) and Safari (Web Browser). I did some research about the favorites playlist and came to a realization that they're located at the end of your playlist section. But I only see my liked video and actual playlists that I have created myself.pic.twitter.com/Axg6nzHGb3
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