I'm working on a mod currently which replaces all of the generic "Hero of Sovngarde" NPCs in the Hall of Valor with named NPCs based on Morrowind, Oblivion, and TES history/lore. I've been testing it as I go and I haven't had any problems until now. I've left the objectIDs alone for the most part, but there are three copies of one NPC, MQ305SovngardeHeroFemale2, who I replaced with 3 distinct NPCs (MQ305SovngardeHeroFemale2a, b, and c), and when I went to test it this time, the unique dialogue ("A cup, Dragonborn, to death and glory!", etc.) was gone, not just for my new NPCs but for all of the NPCs in that area, and replaced with generic greetings. I didn't change anything about those NPCs except for their form ID, and I've checked to make sure that all the faction data, AI packages, etc. are the same as the original (at least, to the best of my knowledge). Any ideas why swapping out this one NPC with my new ones would have broken the Sovngarde dialogue?