Rescheduling from the confirmation email defaults to after-hour appointments.

I created an appointment for 3:30pm. From the confirmation email, I clicked reschedule. I was redirected to the bookings page and clicked reschedule again, which redirected me to the calendar with today's date and 10:30pm selected. Our business hours are set to 8-12 and 1-4. This started approximately four weeks ago. It happens only when rescheduling.