Well it can happen so lemme ask youI have tried all of these steps plenty of times. In the latest patch Julia just excuses herself when she is about to enter her room in the hallway. There is no option anymore to " lie to her about mom ". She keeps getting upset at the pool. What is the reason for that questline to have been glitching for almost 2 years?
have you cheated in game? Relationship points altered in anyway?
Have you been using older save files or someone else's?
Have you tried new game and following walk-through step by step?
Julia and Janice relationship points has flags between next step of relationship until they become cum dumpster for you, if you miss or forget about one of those you can bug your game, i did it many times with Janice when i was trying to speed run this.
Otherwise i would advice you to grab full save from
Anon4321