Quest went fine for me.
Try this, load a save from before you got the quest and start it again. Not one from during the quest, but before the game knows you are to play it. More than likely, 2 or 3 NPCs rendered in the void. By starting it over, the game will re-render them in the right place.
Thank you. I will try that. Also, I would like to apologize for the cross posting. I noticed that you locked my thread in general and I saw the reason why. I did not realize that I was breaking a rule by cross-posting. I appreciate you pointing that out and I promise it won't happen again.
Keep up the good work guys! Thanks a lot for the help.