Was in day 250ish, finally found the volcano and right after world generation screen the game crashes to iOS. There is no text/error messages. I tried closing the game and retry (saved game is at Volcano 1-1) and get the world generation screen again and again crashes to iOS.
Running on iPad Pro 9.7 with iOS 10.2.1. Game is v1.4 and I'm running a large custom world.