Microsoft Bookings Email confirmation doesnt show staff assigned

When an email confirmation gets sent out to the customer. It doesn't show which staff they have been assigned to. It used to show previously but now its gone. As you see from the screenshot it just says City Campus Study Space it doesn't say City Campus Study Space with <staff name>.But for some reason if you cancel the appoint it will show up with the name of the staff assigned to the booking. I can't find any settings where i can turn this off/on. Also i can now confirm that some customers are getting the email confirmation with staff assigned and some aren't Is this a possible bug issue?

Would anyone have an idea why this is happening? Any help would be much appreciated

Thanks !