I previously posted that Rikke still acted like I was on the quest "The Battle for Fort Dunstad". After some digging around I found that, if I set the Jarl of Dawnstar's health to zero, the quest marker would appear over the place the Rifen Imperial Camp is. I did so and it worked. Unfortunately, when I get to the Riften Imperial Camp Rikke is nowhere to be found. Instead a quest marker hovers over the ground. It turns out she is actually still at the Pale Imperial Camp. Has anyone found a solution to this problem?