I love the new hide the song from playlist feature. It's a great way to hone in on the best songs in New Music UK for example. Alas, its current implementation is buggy. It works fine in online mode. It's very slow, with the three dot context menu opening only seconds after the click at times. Once I go to offline mode though, I encounter a bug that crashes Spotify when I try to open the context menu or at the very latest when I click on Hide this song.
In addition, the feature is inconsistent on Desktop and Android. I can see the hide song in some places using the Desktop software but not on playlists made by others like the New Music UK. Sloppy. This should be consistent. Pity on of the few new developments on Spotify is badly done. Please fix this quickly.