Sorry to hear about the trouble with your Appointments app, @Luckys25443!
If you have more than one location, it's worth checking that you're looking at the same location on your desktop, and in-app. If it looks like you're already viewing the calendar for the same location on both devices, I'd also suggested testing this from the customer's view by taking a look at your Booking Site, and attempting to book an appointment for the dates you've blocked out.
Lastly, feel free to attach some screenshots of what you're seeing in-app vs on your desktop, so we can take a closer look. Looking forward to hearing back from you!
