Some PlayStation 4 owners are suffering lost progress and in some cases are unable to open apps as a result of a new error, fans wrote in a 36-page PlayStation forum thread. Image credit: Joystiq
Posts on this thread speak of an issue called Error CE-34878-0, which reportedly corrupts save files for games like FIFA 14, Assassin's Creed IV: Black Flag, Call of Duty: Ghosts, NBA 2K14, and Battlefield 4.
One user told Joystiq that he lost 30 hours of progress as a result of the bug. Forum members report that you can fix the issue by applying the latest patches available, but no catch-all fix appears to be available of yet.
A Sony representative told Eurogamer that, "We are aware of the cases and we appreciate your patience while we investigate."