I've been playing some more I finally got to 3 stars now, it's a challenge but I think that's good (I use normal difficulty btw). So the work orders from GeoAnon I haven't used from 2 stars on, I tried but could never find anyone lvl 4 or higher that could be used. Maybe later on you could recruit someone, but then the reward wouldn't be worth it if you're making a lot of money already. Thats only my personal experience though. Lvl 3 girls seem to be more available around that stage of the game but not as easy as lvl 2 to get, so maybe dropping the lvl requirement to 3 and adding other requirements could work.
After playing around with production, when a girl is scheduled this is only displayed for future dates not previous so that's why I'm always seeing everyone available I think. Because if you plan chronologically you would never see someone scheduled as you're always working past scheduled dates already. If the selected date is past the scheduled date you won't know from the list when planning a shooting. I would like to know if they're scheduled at any point in time. Because if someone is planned on monday and I plan another scene a few days later with the same girl I would get a popularity penalty. Or just display scheduled shootings in their profile, so you can check it there.
Another thing that happens when I cancel a shoot (because of the list issue) I can't pick the same person on that date anymore as they are already in a shoot it says, but the shoot was canceled so the state should revert to available I guess. I can still manually shoot with the MC and a girl, but using the production tab doesn't work. This is the most annoying so far, I prefer planning things manually because auto production sometimes doesn't do what I want and I need to correct. When you have 10+ girls it get's harder to remember what you are doing. Hope this helps clear things up.
UI specific a thing that doesn't update is the mobile phone icon in the top bar, only when you navigate to another location will it show new messages. There are some others as well like that when only navigating updates.
