Some of my playlists list a video count that is higher than the actual number of videos that I can see in the playlist. I'm guessing they perhaps are videos that were deactivated from SLR but still have spots in the playlist. Even after I delete all the visible videos from one of these playlists, down to the "This playlist is empty" message, the count is still higher than 0, so those hidden entries are still around.
I duplicated one of my bugged playlists (which still retains the count issue), deleted all the videos I could see, and made it public as a test example: https://www.sexlikereal.com/playlists/fix-title-2-1626464