I've come across a few issues with certain quests.

-I went to the isolated beach and saved the kid from the harpy's after I killed Khaga and the other druids. I accepted the quest to talk to Doni, but Doni is missing from the Druid Grove now. I checked the names on the dead tieflings and he wasn't among them either. The kid who was selling trinkets is gone too.

- After entering the hag's lair under the tea house. I cleared out the area with the people wearing the masks, and hopped through the waterfall. I decided I didn't want to deal with the gas, so I left. I came back later and the interaction with the Hag didn't trigger but the girl you are supposed to rescue is still there, I can release her from the cage, but nothing else triggers, and dialogue cannot be initiated.

- I entered the hidden Zent hideout. I talked to the artist and agreed to free him. I was walking across the top of the area after talking with the leader and there were hostile creatures who initiated a fight. The leader, and the rest of the Zents who were below eventually joined in including the one I was supposed to buy the artist from. I killed them all, the artist was still alive. I talked to the artist after, but the only dialogue that happened was him asking if I had spoken to the slave owner about buying him. That character is dead. I should be able to free the artist

- Also in Zent hideout. After killing everyone in there I went to free the tied up guy and nothing happened. I selected free him, and the dialogue closed, he stayed in the chair, the noise of him being beat up kept going, even though the guy hitting him was dead, and I could no longer initiate dialogue.