[0.3][Bug/Gameplay] Houses vanish when hitting level 4 city
When my city leveled up to 4 a few of the houses got upgraded to Villas but the rest of them disappeared. I had two cities reach level 4 before the game locked up on end turn but both cities lost most of their houses when leveling up and only a few turned to villas. One of the cities did make it to level 5 and nothing happen so I think it might have to do with the house to villa upgrade.