9To5Mac reporting that iOS 8.3 blocks access to file transfer apps like iFunBox, iExplorer, etc
I've just tried it out and couldn't access the folders of Puzzle and Dragons. Thankfully, I've already settled down on one account. Although this change is great for the security of iOS devices, it means you can't reroll a new account quickly (deleting data48 and data56 files using the file transfer programs) or swap around multiple accounts. (again, replacing data48 and data56 files using the file transfer programs)