SPOILERS
I cleared VoH campaign in the Softcore seasonal realm.
I am now unable to clear the fog surrounding Akkarats tomb on my HC seasonal realm character (as I clicked skip campaign on creation) as it is a story only related area.
This hurts my OCD a lot, I was having fun clearing the map until I realised I will have to do another campaign playthrough, on HC, right to the very end just to clear the fog.
Thanks for a brilliant expansion.