Regrets of the DreadWolf- heights of Athim -bug/quest not starting

Hey, I know I'm not the first to mention this issue, but it's a real drag.  I can't move forward in my first play thru and I've gone back to saves 20 hours previous. 

I got to the quest marker.  I get to the portal, nothing triggers.  I fall thru the portal and run back around. I'm 60 hours in and level capped , this is a major drag. 

Any idea on if this is gonna get fixed or what causes it if I play another character?