Family sharing organizer changed region, but my app store still stayed in the same region

So my wife is the organizer of the family sharing group, and she changed her region. My region as a result also changed (shows as changed when looking at settings), but my app store still stayed in the original region (language, apps, etc still all in English).

Now as a result I can’t make any purchases as the app store says the region is wrong and asks me to change to the new region; however, everything else shows that I have already switched to the new region. How do I change just my app store region?