Have you done Jack's event with a basketball game? According to your save files, it says you did so ignore it. I'll correct the error in objective list.
I think, this happens, when you do the "lazy day"-event, go with Tom and choose: "No... I love Jack".
There are two other bugs with this event and the objective list:
"Jack invites you for dinner" will than stay as objective and the dinner invitation the messages will stay in the last messages, when you don't read the message about basketball before and choose on a certain point: "Trust Jack"
"lazy day" will stay as objective, if you choose: "step in".
There is also the possibility to miss the shower-event with MC and Lena's father, when the MC is not corrupted enough, as this is not repeatable.
All in all, I like the game nevertheless very much. Keep up the good work. It would be nice, when you could add (especially) the (non-repeatable) events for the MC also to the scenes-screen. I really would like to enjoy them repeatedly without nurturing my RSI-syndrome more than necessary.