Discovery Weekly is not working properly

[DoctorNoronha]

I am having problem with my discovery weekly playlist, instead of giving me one playlist for a week, it's give me more than one, for some reason every sunday its giving me a playlist that last just one day, because on monday i receive another playlist that last until the next saturday! 

So everyweek i get on playlist on sunday and other on monday-saturday.

That is very annoying! 

I hope you guys have a solution!