ok solved this one by using Knock on the door before entering verge of the shadows.
a new bug appeared. now shadowheart doesn't recognize she already got the spear from the library (she has it equipped even) and asks to go back and get it.
there is nothing in the library since we already got it a while ago. i dropped it and made shadowheart pick it up, nothing.
going back to the verge to go down and meet who we gotta meet.... and now i either have to force her or go back to library.
when i force her a fight breaks out, she is out of the party and now an enemy.
lots of bugs with the latest patch.
im done.