Watched Videos On YouTube Remover

I just downloaded this extension, but the button is not appearing. Extension IS on, and I've refreshed my Youtube page, as well as changed playlist settings (public, private, unlisted). I'd be very happy to update this rating to a higher one if it begins to work, or if the developer wants to chime in and tell me if I'm missing something!

Used to work really well until about a week ago and then it stopped working on playlists other than watch later. No idea why. Can't get it back working. Not sure if it's just me...

The button doesn't appear if there are already 6 entries in the playlist hamburger button menu: show unavailable, add videos, add all to, collaborate, playlist settings, delete playlist Also, it seems like it misses videos unless you scroll back up to the top after loading the entire playlist, and on mobile browsers you can't keep scrolling down while the cleanup operation is happening. Still, this is a very helpful tool when it does work! There's just no telling when the playlist menu will or won't load 5 or 6 buttons though :/ Edit: I've tried this out both on desktop and on an android phone with kiwi browser in desktop mode, and the bug appears on both platforms. As for thr mobile site, many of the hamburger buttons don't even appear there, including the playlist hamburger button, although I'm on the lookout for an addon that can add those back since the mobile site does still load much faster... As for why I don't use the app, I like the more granular speed controls that add-ons can bring, including some other features you don't get even with a premium subscription.