I get something similar in the PS4 at least for Paramour 3 as I got Paramour 2 rekindling the Williams romance in 3. In the 360 version you could earn the Paramour achievement AFTER the Collector Base but now all I get when I talk to the conversation that triggers the romance the screen goes black. I can invite her up to the Captain cabin but the game doesn't register that the romance took place as the script apperantly skips that event and hence there is no reward.
What I usually did in the old version was do that romance and then reload to not have it transfer to the next game but now I can't even do that even though the game acknowledges that I can continue building up romances in the after credit sequence.
This is a very common problem and there are various threads with this problem that you tell me.
