streams of certain songs of an artist not being added to my full streams of the artist

for the artist KANKAN, my old streams of some of their songs aren’t added to my full streams for them, yet when i click on the song, i can see my full streams on that song, it’s just not being added to the artist’s streams. it says i have 441 when i should have at least over 700 just from adding this song alone, though there’s more songs that weren’t added. i think this might be because recently their duplicate profiles were removed and it just didn’t add those streams.