Appointments+ ver. 2.24+ No Longer Handles Durations Like 2.22-

My simple weekly display used to have 30-minutes time-slots from 9:30am to 5:30pm. Because I had the “service” set to 90-minutes, when someone booked the 9:30am to 10:00am slot, the schedule would block from 9:30am to 11:00am…11am would be the next available time slot to book. Now, with version 2.23, all that changed. Can I get some help?