Tetrax-10
commented
1 year ago Sort by Play Count cant sort if the song does not have necessary sorting data.
mostly a new song that has been released within 24hrs wont have that data. (or) the song is heared by very few people (0 to 1000) so spotify doesnt provide playcount/popularity details
it doesnt delete anything from the original playlist. it just ignores song that dont have necessary sorting data, so when you press that plus button those songs are not included
Reproduce: Take a fairly large playlist and sort by popularity, for example. Hit the + button to create a new playlist with that custom order. Note the previous total songs in the playlist compared to the new count.
I think what's happening here is that sometimes playlists contain songs that are greyed out, perhaps missing from Spotify at the moment and the extension does not attempt to preserve them.