Damn, that sucks. One thing you could try (it might take a while and I don’t know if it will fix it):

Go along with the raid the grove quest by telling Minthara where the grove is and betray her at the last minute, siding with the tieflings. I did that in my current playthrough and found it a fair bit harder than just offing the leaders, particularly keeping all the tieflings alive (at level 4). But it’s an alternative good path option, and on completion Halsin just shows up, having escaped on his own (hoping that might override whatever glitch you have).

As you’d be trying it as a workaround, maybe switch to easiest mode temporarily if you’re a lower level and don’t let Zevlor bite it.

Last edited by Dagless; 28/08/23 04:01 PM.