Gekh Coal perma invis, breaking quests

[Bacon]

Went to Duergar Camp, everyone dead. Gekh Coal in invisibility, noted by Concentrating:Invisibility. Would never come out of invisibility. Had to retreat camp and leave to break combat. Came back with Glut later, he triggered an RP scene in the area but location unknown.

I went around spamming Hide to see where my characters are forced out, but I still cant get his location from that + spell/potion spamming. Am I hardstuck?

[turnip]

Did you ever figure this out? Same exact thing happening to me

[Moonbane]

there is spells to see invisible
https://baldursgate3.wiki.fextralife.com/See+Invisibility

[アンジェル]

You could also just set the area on fire or throw around water.