Well there's me feeling like an idiot. Is it normal to have 2 locked scenes after having finished the latest objectives? I've got one missing for both Mia and Sarah.
The game has bugs. One I ran into is basically this: don't start another quest if you're already in the process of doing one. For example, I started the quest of talking to the mom after the massage the day after. Then I went to go make some money for the date with her, and I ended up talking to the girl at the store. That started her quest, 'Netflix and chill,' and it completely locked me out of doing the mom quest. I had to start over from the save point I had before starting the mom date quest because, even though I had enough money, it wouldn't allow me to progress the quest or talk to the mom anymore. Another thing: the day she asks you to zip up her zipper through text, if you don't go right away, it'll bug out because her positioning changes throughout the day, so it stays bugged, and you'll have to start over.
I might be wrong, but I'm pretty sure, He just implemented that gallery. So since you completed this story before the gallery was implemented, It probably just didn't save, that's my guess.
Tried a fresh start on the first day and nope, it's still hard-locked. Cannot proceed after talking with everyone. I've noticed that the console in the living room should be interactable but isn't and I remember on an older build I could which led to a conversation. I doubt that's the reason though since it says I can just go to sleep and not have to talk to anyone. Such a shame as this is a really unique game but it's seriously buggy. I guess that's the price you pay when going fully 3D.