Wed Jul 26, 2017 4:18 pm
the lost map was designed to never get a Retreat from Battle, and Losing/Crashing/leaving will result in not resumable. But you may spend gem to Retry in the same map.
It is not a bug, but the Crash is something that the Dev have to look into, but you need to provide ur iOS/Android system spec/version and phone model for them to look up.