I resurrect this dialogue because I think I can add useful information to the persistent problem
So far, I am experiencing the bug only for those NPCs that INITIATE dialogue with the player while things work fine otherwise.
I think somebody knowledgeable enough might figure out why this happens.
I have to take it back...
That's not it either, because after removing the INITDLG.BCS script from the NPC I tested, the NPC disappeared again.
Edited by Salk, 12 January 2017 - 05:08 AM.