Without spoiling anything, or at least trying very hard not to, I'm at a point in the questline where I'm at the turn in after collecting a few heads for this guy and after turning it in, it should automatically start the next quest but it doesn't because because I've apparently already cleared the location the next quest starts. I've read it fixes itself after the location respawns after 30 days but it's been far past that and it's still bugged. I've tried the console fix but it's not working. I don't expect a solution here but I'm hoping it, as well as a few other quest bugs, gets patched up in the next patch.