If you send me the save via discord I can just check it with a unity file save editor. Hell, in fact, you could edit yourself the Variable number 20 to 100, and be good with it.
What joey says is that when the papers are given, it can boost Humor OR affinity. And defenitely, changing them for humor is not needed. Anyway as said, falls inside the world of possibility that you left blocked hanging in 65 or wathever.
Anyway, if you wish to see all the content Robin in that version, just restart the game, Skip prologue, choose Dead path, and in very few time you'll be seeing new content. But, there is a bug with the new scene if you have less than 300 lewdness (It would not show anything either, you need more than 300 to see it), but the scene blocks if having less than 300. (Being fixed in 0.21)