Was made aware about a slight issue with the current release.
If you play Rin's newest massage scene before the Mary Hidden Sex scene, it won't grant you the Manly Point to get to 40/40.
And if you play this scene before Rin's newest massage scene, you won't get that point either (I think). That is because this dev copy pasted code without changing it afterwards.
This fix should do the trick, just paste it over the game folder. You might still need to restart the chapter from the beginning (choosing Start and selecting the Chapter 3 option) for this to work. Nothing game-breaking here, and it'll be fixed in the next update, but it's definitely an annoyance.
Sorry about the inconvenience folks!