I had this problem, mission bugged for me and couldn't get ubba back. I went to Randvi and pledged to a different clan on the alliance map.

After completing the missions in Grantebridgescire I went back to Randvi, opened up the alliance map and repledged to Ledecestrescire. That's when it the quest objective icon popped back up for me. And I could speak to ubba again.

Hope this helps, p.s I have a feeling if you don't go along with the missions as they go your likely to encounter some bugs...

I had this problem, mission bugged for me and couldn't get ubba back. I went to Randvi and pledged to a different clan on the alliance map.

After completing the missions in Grantebridgescire I went back to Randvi, opened up the alliance map and repledged to Ledecestrescire. That's when it the quest objective icon popped back up for me. And I could speak to ubba again.

Hope this helps, p.s I have a feeling if you don't go along with the missions as they go your likely to encounter some bugs...