I am moving mods from my old Cities XL to XXL, and now I got this problem: Every time I start a new city, no matter what, when they are around 3 thousands citizens, all houses turn red on the health satisfaction and a message is displayed : "CITIZENS ARE CONSTANTLY ILL !". I deleted some mods like HEM, but it didn't change the situation. I believe there's a mod which is causing this behavior because I didn't have this issue before... Please help me !!