After you finish Lucy's maid quest, why can't you access the full shower scene? Lucy just cleans the coffee table and yoinks your 200 credits.
Now that I think about it, I'll also mention some of the other oddities. Before the shirt rule is passed, when I sent Rachel to public punishment and I got a scene where she gets bodymarked "S L A G". But when I do it proper(i.e. after shirt rule and level up) it shows a black screen instead. Also the second objective in her quest never completes, although I can progress with the quest.