I play on Bluestacks which some seem to think contributes but seems wider than that. I have had a couple of normal battles freeze but fleet is the worst. I quit and restart after every battle. I guess it is some cumulative memory thing (even though can clear that - well there is a memory trim thing that is supposed to) as as long as I shut and re-open it doesn't happen but it is still rather a PITA. In any case, has got to the point I dare not fail to close it after 1 fleet or a couple of normal battles as just happened so often.
