Spoilers for Act 2
So, in all my time playing BG3 I've never seen this before but after saving the nightsong and then heading to Moonrise to attack Ketheric, Jaheira is shown to just be dead. Didn't fight yet or anything, just dead among a ghoul corpse. I have some mods but non-that require script extender and is mostly CC.
I can raise her up with a scroll but you cannot talk to her after.
Has anyone else experienced this?