FE4: Game freezing at Chapter 10

I have no idea what's going on to cause this, but in the middle of the enemy phase of my third turn attacking Miletos, the camera just stared at Yurius and blacked out. How do I fix this?

Goddammit, if it wasn't for my Serenes ban, I wouldn't have to resort to asking this community. Lord knows how many of them have done nothing but play FE13 and watch livestreams of 14...