I am happy with the new update and things were going smooth. However, the last day or so I have been unable to run the game and it has been intermittent until just now. The only thing that has changed was my completion of my upgrade to Industrial Age. Now that I have built many of the new buildings, it won't let me start the game - might see Nexon logo but won't get passed a black screen.
Running the latest updates on Galaxy Tab S