Civilization – Can’t purchase with faith in converted cities

civilization-5civilization-5-brave-new-world

Once a city converts to my faith, I can't buy any Faith-based buildings, like Monasteries or Mosques… but I can purchase them fine in cities that don't follow my religion. Is this a bug, or intended game mechanics?

Best Answer

A city can only build a building if the majority belief in the city has that building as one of its follower tenets.

Is it possible that your religion doesn't have that tenet, but the one you are pushing out does?