Warning: This post contains spoilers. If you don't want to know about the quest Pieces of the Past, stop reading now.
Normally I can resolve my own issues but this one has me stumped.
I can get up to the point where I'm at Dagon's shrine, have just killed Silus, spoke to Dagon through the alter and he's reforged the dagger. As soon as I take the dagger and he starts saying "Wait a minute.." I CTD.
This has happened on multiple characters so it's a constant. I can go right back into the game (I saved before taking the dagger) and CTD in the same spot. So it's not performance related. I've also tried setstage to bypass talking to him and finishing the quest, still CTD.
I'm assuming there's something going wrong with the scripts to trigger the Dremora so I pulled all the DA07 scripts out of the bsa. Didn't help.
I run very few mods - the USKP, Live Another Life and Ars Metallica. I'm currently on patch 1.6.89 (as I see no reason to update to 1.7).
If anyone has any suggestions, I'm listening.