Hi there,
Yes, Both are v1.2. Thank you for your support too!
The apron event requirements are the following:
1) Weekend(Sat/Sun) 2)Morning(wake up at bed, NOT come home) 3) has "Apron(blue)" and gave it to Fuyuka
4)romance > 200 (when you observe her, it said "She is in love with you...")
So far there is no bug report about apron event not happening, so I think its not a bug. The savefile problem also doesn't affect this event. If you are playing v1.2 than it might be simply not meeting the requirement above yet.