It's alright I got it working with the compressed version and it works just fine. But I am genuinely curious as to why it's not working with the normal version, even after deleting the whole save folder from appdata, deleting the game's folder and extracting it again, and still the incest content wouldn't be triggered. I'm done trying to fix it but I feel defeated having no clue as to why it wouldn't work lmao.
In any case thank you for providing the old version and for the info man, to me this is where this game peaked and I really doubt that'll change in the upcoming chapters of this remaster, story and character development wise.