Okay, so I just bought the City of Tomorrow, the Airships Set, and the Amusement Park Set. I know, a little bit late, but I have recently got back into playing this game and wanted something a little bit different to try. The Towers seem to be a challenge, but I love it. However, every city that I play since doing the upgrades, I have depleted resources. At first, I thought it was because of the new "omega" resource, but since Omega requires those resources to produce, this just simply is not the case. Also, I have had to demolish all Trade Centers and Ports to add new storage to them. Every time I would add a new storage lot or delivery trucks, they would disappear as soon as I came off from pause mode. Is there a solution to this issue?