Ever since getting this week's update, my IOS devices (an iPhone and an iPad) randomly shut down the game when the device goes to sleep. In other words, If I close the case on the iPad, or if I minimize the game on either device, when I go to click on it again, chances are the game starts up from scratch I have not yet been able to confirm the time it takes for this to happen because so far it seems to be quite random. I used to be able to have it in the background for hours. This never happened before the update, and it still does not happen on my Android device.

Is anyone else experiencing this? Is it a bug? A new time-out feature?