Podcasts app shows Dutch charts despite region

Hello,

I lived in the Netherlands for a few years, and I mostly used my Mac there. This year, I moved back to Korea permanently and changed all my region settings to South Korea. Somehow, the podcast top charts and browse sections still only show Dutch podcasts. I want my Podcasts app to show Korean podcasts, and I don't know how, because my region settings are all already changed. Can somebody help?