Okay, weirdest thing I've encountered modding so far. Basically, I set it up so I could look at a cutscene camera by selecting one option with my PC. I made a second option for me to abort the convo. It started fine, but as soon as I got to the point where I chose to continue or exit the dialogue stalled I couldn't choose any options. I could click on them, but nothing would happen.
So I warped out of the conversation, and instantly the two nodes that would've appeared had I said I wanted to see the cutscene model started, but the cutscene model didn't play. Then that dialogue stalled and I had to warp out of it. So the lesson is this: Never call a cutscene model directly after a PC decision.