After picking up Auriels bow I completed "Touching the sky". Now Serana is supposed to open up a dialogue option to start Kindred Judgment but I am not getting this option. Does anyone have an idea how to fix this? I've tried setting the stage of Touching the sky to different stages without succes. I've tried forcefully starting Kindred Judgment without succes (it simply won't start). I can talk to her and get the blood arrows and I can shoot at the sun to make it dark outside.
But still I want to finish the questline because it feels like I'm missing out on something. I don't have a viable savegame to backtrack to and so far the only 'solution' I've found is making an entirely new character, but I guess we all know after 100+ hours nobody is really keen on doing that.