Ascension to the Throne - Valkyrie, stuck at Nomun-Tor battle

[Masterfury]

Well since I love the first ATT I ofc had to get myself the new one, but I have encountered a problem.

I pretty much killed the occupants of the Castle before I should.

Before I met up with my Master and the Khan to go to the castle, I instead went to the castle and killed Jarg and his crew (with the hero alone) and I think it was supposed to be impossible to do this, but as I am a mage it was quite easy. Now when I killed them, nothing happened really. I could move throughout the castle and the units that were standing there with the flags did not disappear.

After that, I went to the Master, did the quest and killed the units with my Master, Fenrir and the Khans help.

Then I tried to do the quest that was given to me by the Nomun-Tor's "Jarg's Fall" and I could not do it.

I convinced everyone of the warriors to follow me and took the units into my army but now I am unable to talk to the Nomun-Tor leader. If I disband any of my units I can talk to him and he tells me to get that type of unit that I disbanded, but after I got all the units I am supposed to have I cant talk to him.

If I try to attack the castle, I get the same stuff that happened the first time
my char goes "oh why did I go to (a) reinforce(ed) castle" and I am stuck with fighting by myself once again, even tho I win, nothing happens. I cant progress trough the castle, nor anything else.

My last save is ages behind me (14 levels) so I hope I dont have to go all the way back there.

Also I wondered if there is any way to get back to Hertwigs castle, as I have the medicine I needed to cure him but I cant seem to get back there.

Thanks for any assistance.
-MF