This app often got crashed in the middle of duel, and sometimes at the end of the battles after I got defeated or I won the game, both in Solo mode (vs ai) and in duel ranked (vs other duelists). This happen after lately maintenance. I've tried to clear the cache at first, but it seemed like there's no significant changes. I used to enjoy this apps in the first place. But now, only 1 star from me. I hope you guys fix this soon, and I'll change my rate when the problem is already solved. Thanks