Konrad’s Hold 11/12

I’ve visited all 12 locations in Konrad’s Hold.
Literally waited until it said “Now Entering” for all 12 locations (including General’s Perch etc).
I’ve done the transition from the three entry points and I’ve gone in and out of the slaughter shaft but it’s still showing 11/12.
I’ve searched through a hundred lists online and all the suggested solutions aren’t working for me. Is there anyway to fix this bug? And more importantly is this going to lock the two achievements related to it?

Did you walk a bit further in to Slaughter Shaft to get the “New Area Discovered” screen popup? If I remember correctly you need that.

Sure did.
Even Slaughter Shaft is showing as 1/1s