On one playthrough, after speaking with Kagha, I attempted to talk to Zevlor. I simply told him he and the other tieflings had to leave. He attacked me! And when I left his cave, all the other tieflings were hostile as well.
This also happened to me. Idk exactly what happened, but this
reddit post I quickly googled sounds familiar (2nd paragraph). If you tell Zevlor that Kagha wants him to leave, he attacks you instead of leaving with his people. Obviously things might have changed in the multiple patches since I played/this reddit post, but it was shocking to me that he'd attack me just because I agreed with Kagha that the tieflings should be on their way.
