Unable to complete the +30 spirit on Freythorn Cruel.

Hey,

Have tried multiple times to clear "the king in the mists" for the 30 spirit unlock.
For some reason i can kill Freythorn but no quest or unlock happens.
How can i unlock this quest? Asked multiple people ingame and they also tried to help me complete it but no success...

They tell me it might be e bug.
What am i doing wrong and/or is this a bug/Glitch?

there is no 30 spirit in Freythorn Cruel, you get 40 spirit by killing bog witch cruel, which give you a total of 100 spirit as everyone else during campaing.