As Puzzle & Dragons continues to be updated on Android platforms, it becomes increasingly difficult to maintain compatibility with select functions while maintaining optimal in-game performance for select Android devices that are able to use SD cards for external storage. Because of this, Puzzle & Dragons will no longer support data storage on SD cards for Android platforms after the next update.
See here for details on Maintenance Notice: https://bit.ly/2DbGUBH
Please be aware that the aforementioned information is subject to change.
Thank you for playing Puzzle & Dragons, and we apologize for any inconvenience this may cause.