The artist status chart glitch

Alright, it's been a whole week or two and I checked the status all the time of my top artist and it's missing the top second artist. At first, the first place is Melanie Martinez then the second is Mindless Self Indulgence then third is Red Leather then forth is Lady Gaga and for some reason Melanie Martinez is no where to be seen and of the top artist chart (and I listened to the artist music and the top song is “LEECHES” and should be at the top first artist status, right? In that case, it's not where to be seen) and it doesn't show the second place (only 1st 3rd 4th and so on) moving MSI on the first, then Red Leather on the third place then Lady Gaga on the fourth, and there's no second place