I’ve never seen them chatting in Act 3, but I’ve only been playing with Patch 2 and onwards. Not sure if something existed previously and bugged out. Act 3 is significantly more underdeveloped than the first two acts though, so I wouldn’t be surprised if there was no ambient dialogue
Yeah, that was also what I was suspecting but hoping for it to not be true, since they had multiple lines of dialogue per location in the first two acts.....

Oh well, if it is true I'll deal.