Final Fantasy Type-0

[Neko-Nyan]

Hello, I have a little problem that prevents me from continuing the game. I was able to play almost flawlessly (a few artifacts here and there but nothing much), until chapter 5. While on the mission (I'd rather not tell which because of spoilers), when forced underground, the game freezes (aka the music still plays but cracks and pops, but the image stops). I've tried to tweak the graphic options every way I could but nothing seems to work, I tried to look for solutions but so far, I wasn't able to find any help for that matter...

I thank you for your help