Trying to re download. My game just stopped opening. It'll show opening screen and the cut back to app screen. Worked fine last night.
Im having the exact same problem, just started this morning.
Don't know if it started working got you again yet but if not i found a work around. Go to app settings for eternum and remove all permisions then open the game, approve permissions again, close the game, then open it again and it should be working.
