If none of the above fixes work, delete the folder associated with 01006DC010326000 (back it up to a PC first). Let the game create a fresh save. Then, use a save editor (like BD2SaveTool) to import your backed-up stats. It is tedious, but preferable to losing 100% completion.

The game can be surprisingly difficult. You can easily stumble into a boss fight that wipes your party in two turns if you haven't mastered the specific job counters. While this encourages strategy, it can lead to frustration if you aren't willing to grind for JP (Job Points).