Dissapeared artist?

I have downloaded this app about 3 months ago and since the beginning my most streamed artist has always been Kanye for every category and 1 week ago he dissapeared all of a sudden. He didn’t drop lower but just dissapeared, I still have his song in my stats but he is not there. Now I know I listen more to Kanye then playboy carti so it isn’t that he deserved to be off the list