Oh! I'm so sorry about that, thanks for letting me know, I'll take a look at that and see why that happened.
Just a little something that will help you get back to where you left off quicker- in the case selection menu after you choose a case (when it gives you a list of chapters to pick from, or just "from the beginning" if you haven't completed the case yet,) if you tap the greyed-out up arrow 16 times, it'll unlock all the chapters for you to pick from. If you jump to the "What Nargis Saw" chapter, it should be pretty close to where the game stopped working.
Again, I'm really sorry about the bug, and I appreciate you letting me know!