Lately I've had a problem with some blinking in my city. It looks like a copy/blueprint of my city, or another city, is behind or on my city. This "other" city is only visible when it is blinking and a white outline shines through - it sort of look like strobe lights. The problem increases over time, and stops for a moment when I reload the page. Entering the world map, research or other stuff without reloading the game does not seem to have any positive effect. When entering the tech-tree, parts or everything is invisible, but it is there when I click on the right area. It has come to a point where i feel physically sick looking at the screen. The problem is only in my beta -city (I have 2 other cities on the no1 server as well, and use the same browser in all three cities). It seems like this is a new problem - as Elvenar support says that they haven't heard about this from any other players.