I've had a succession of issues on Nexus 6 Android. Game goes to a black screen randomly or persistently on launching the app. The Black screen freeze sometimes just needs me to relaunch app. Twice it's persisted and recurs each time the app is launched. I can fix it by uninstalling and reinstalling, but I've had to do that twice in last 2 hours (end of a hot rumble). The crash/freeze has happened at launch, during streak when loading new bases, when loading northern seas map, when bringing up guild info screen.