I went to Ngobbu first. However, I'm not certain if this a bug or just me not being able to find a way to progress.
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I have the exact same problem, rescued Ngobbu first, then noble girl, then got to sleep in the tavern, then the game completely glitched, noble girl disapeared and the quest is looping for the noble girl but when I'm in the frozen cave the girl is here again and there's goblins ennemies but it loops forever and can't re rescue the girl. All my save are in this state and I'm stuck and can't continue the game. I'm so sad 😥