It's hard to say exactly what the issue is you're encountering but as long as you have opted in to the shifter content and do not get either the Nick or Connor romances, it should unlock for you. That said, some folks are definitely still having some challenges with this, so the next update is going to have a revamped system for this where you make one choice at the launch of the game (and you can change it in the menu) so you KNOW whether you are opted in or out of those sequences.