Weird stuff happened. Trying to do the quick save and reload doesn't work. 10 min later, when I'm fighting near the Black Ring gang, the reward screen just appears out of nowhere. Thanks, I guess?
Saved my life, I went to talk to the ghost after killing and was worried but i didnt exit the crypt before quick saving and reload and can confirm it worked.
I killed her, multiple times, with both the character that passed the persuasion check, the one that didn't, tried quitting, reloading, jumping three times on my left feet. No rewards, only the EXP and some crappy loot from the body.