Is there some ways for players to :
1) move the capital to another city
2) move the city linked to an outpost (and its resources) to another city?
I guess this is a bug :
When capturing a city with one building per factions building (Palace etc), the buildings are not destroyed. I conquered the Resoln capital, and I get its Palace. Then, I conquered its new capital, and also got its Palace. I have two cities with Palaces now.