[Bug?] Harpy province conversions

[TheDarkMaster]

I've converted several provinces and their priests to Faith of the Seven, but on the death of the septem, they're replaced with new Harpy priests. Is this a bug?

(Dany start, remained in Meelen and started converting provinces)

 

[Drake_Hound]

No this is part of vanilla coding , you need to have converted the culture aside from religion , or else randoms will pop up as Old religion .
It is part of the cultural stuff , example you have converted the whole to a religion , still some of them cause of the culture will revert back to old religion .

but hard to do turning everyody valarian since then the culling will start again .

 

[TheDarkMaster]

I had this happen with my Faith of Seven chapel holders as well in the North. If I converted them, on succession the new character would be Faith of Seven again.