This keeps entering my mind. I had this idea that if it is the Screen resolution and the icons that leave the screen start to have issues, then the Citizen screen should have issues as well when there are more than can fit on the screen. So I tested my theory, added many cities that filled the whole DA screen and then some. Sure enough, only Buttons close to the resolution would work, anything over does not. So, I increased the resolution of the DA to full screen and once again, Buttons in within the resolution work fine but when you have to scroll down they do not. Seems very odd that this would be an issue. I wonder where the bug lies, that is the question.