I find out why i can't trigger Julie' path , because i didn't trigger Kasumi Side Quest.
It sounds weird, but before i get the Kasumi sex scene, i can't talk to Julie and go on. I talk to Julie like 50 times and not work (cannot update the task), so i just try other people's path.
Maybe you write some codes for bonding them? I just show my details.
Mainline ------ Julie(can't trigger)-------Dylan (can't trigger Julie's)-------Kasumi(can trigger Julie's)