So I was on story step 8, and I know I talked to Rian and Kamilla, but didn't progress further than that, and I wasn't really paying attention, because I was having a conversation with someone else. They were doing the meta in the first map, and I still needed one of the achievements for that, so I switched story chapters, seeing as I was at the beginning of chapter 8 still.
Did the achievement, and stopped playing. A few days later I restarted chapter 8. Now I'm stuck on 'Take the motivation from Kamilla'. She won't give me a motivation. I have no idea what happened to the one I supposedly got the first time around. I might have double clicked it after the meta thinking it was a container? No idea. I tried buying a new one, but no dice, as I'm not stuck on USING it, but stuck on receiving it.
So far no solution. I can't finish the story. Anet doesn't seem to care. Great game this.