So I went into the fight, ready to beat him up. Went into it, wrecked face, and then got rekt in return like I was supposed to in that first fight. And then the game crashed as the battle was supposed to end. Reloaded, and then it tried to end the fight again at the same spot, and crashed again. And again. So I had to swap to using an emulator to get past the fight, since Windows doesn't seem to like the fight being ended forcefully, and I don't have an alternative device to play on. *sigh* Why does Windows have all the unique bugs that impede gameplay progress in some way?

TL;DR: I got stuck in a crash loop on the first part of the Karna Masta fight and had to use a different platform to get past it.