Finally bit the bullet because I got perma stuck at the ascent to the throne part due to the quest to kill the ghosts not triggering. So I restarted the entire campaign in the hopes that would fix it. Only now the VERY FIRST quest is also now bricked. The quest to spar with the NPC’s, defeat Muradin, talk to Jaina etc, isn’t triggering. SO I CAN’T EVEN DO THE FIRST PART OF THE CAMPAIGN!
???
Edit: Managed to get past it. Turns out you need to AFK for at least 5min for the quest to randomly auto-trigger. Multidollar company folks. 