I'm running some quests in Reaper's March veteran zone and I've run into a couple of quests where an NPC will be invisible and I can't interact with them in order to progress through the rest of the quest. One example is the quest "A Night to Forget". I need to speak with an NPC named Khuzi but she's invisible and I can't talk to her. There are other quests here that I can't even start because the NPCs to obtain the quests are invisible and I can't speak with them.
Any way to solve this?