We'd like to be able to modify bookings in the past, generally when someone finishes earlier than scheduled. When I try to change the booking setting "Allow creating and modifying bookings in the past", it doesn't save. I get an error message by the Calendar Intervals setting, "Sorry, this setting is incompatible with your Group Opening Times. Please configure your group opening times to match this setting first."

Our group opening times are set from 00:00 to 23:59, and Calendar Interval is set to 30 minutes.

We need help to fix this, without losing any data in the schedule.