The thing is that I've seen that 'bug' reported several times and it always had something to do with having a mod installed before reaching that point during normal gameplay. If I've understood you correctly, you only installed the mod after experiencing the bug, to see how to bypass it?
sorry for the delay, got tired from a project of bug hunting.
for what you asked: yes. i used the mod after finding no answers from the forum to check what i might have been missing.
i`ll wait next major update. in case i still have issue i`ll download one of the saves you guys had donated.
and for all of those whom laughs at the mod unlocker. some use it to see entire story. to check latest changes.
I love this game for the double gallery, for the sex option and story option so you can be reminded.
Alot of game fail to do this. it`s pretty annoying, especially when its choice based story.