I have a bit of an annoying problem with my playlists. I have a few larger ones (3-400+ songs), where the recommendations became useless.
As an example: I have a playlist, where I've collected hundreds of lighter songs that I like, some from entirely different genres and styles. Amongst the 470+ songs, there are about 7 songs in my native language.
Every single recommended song, regardless of what genre it is, is now in that language. Clicking refresh does nothing, it cycles through the same 50-60ish songs (all of which I hate).
The playlist mostly consists of alternative rock and pop-rock songs, and I keep getting badly remixed folk songs with rap recommended.
The same happened with an electronica playlist, apparently one of the songs is used in memes and now ~7 of the 10 recommended songs are "Spooky scary skeletons" and similar songs.
I've seen "re-create the playlist" as a possible solution, which I don't want to do, as some of the playlists have high(er) numbers of followers.
(Since posting I've tried it. No difference, same recommendations.)