[1.7.2] aeryn dissapears during win if no cloak of deception

[Zeyphor]

so i beat the game as a skeleton without using the lake of nur to make my cloak of deception passively be applied to my body, and without wearing the cloak of deception at any point during the final boss fight
on turn 0 of the final boss fight, i got the full dialogue, including that of aeryn, but she was hostile immediately upon spawning
she targetted elandar first, probably because he used his staff's essence drain on her for >4k damage

anyway, the final bosses both died and aeryn was alive and well at the end, with ~40% of her hp remaining and second life active while she was out of line of sight of elandar, and 2 turns remaining before i killed the last final boss, who was elandar; i killed argoniel first because it was more convenient
but, on the very turn when elandar died, after argoniel was already dead
aeryn vanished into thin air, just like that, probably because she was hostile; this robbed me of <The Sun Still Shines!>, as well as the dialouge with aeryn

I'd completed the charred scar beforehand with many turns to spare

anyway, if you're undead and don't have cloak of deception active during the final boss fight, its impossible to get the sun still shines

[Jurriaan]

You do know the cloak of deception isn't necessary anymore at the end of the game, because there is a way to remove your undead aura, right?