My flow turned French!

...and no, nobody else is using my account, as advised to another user here. country preference is also set to my country. all other features, such as play the  track mix is working according to my preferences, "just" the flow - and now for weeks! - has turned into french pop radio. I have blocked so many french artists now that I am already wondering how many french pop artists there are? I am on the verge of throwing away my painfully manicured account of 5 years as this is unbearable. please advise.