I need help!!! For some reason when my city reaches around 1,000,000 people all of my RCI Demand bars all go into the deep negative, and i start to lose lots of sims. i don't understand what im doing wrong, I have an extensive subway and EL-Train system. as well as a large highway system. My Residential and Commercial zones are completely mixed together and my Industrial zones are along the edge of the whole city, as well as every bordering city. Does anyone else have this problem?