Also missing the Unraveling Sands ability on one of my 3 Remix characters.
Am I correct that it seems to happen to characters that skipped the intro within the first ~24 hours of launch? My Lemix main did the intro and has the ability. My 3rd character skipped the intro yesterday and has the ability. My 2nd character, made the 2nd day, does not have it. Also had a few weird progress issues on that character, so it seems like the skip was the problem.