I had another ticket open but there were multiple issues and only one was addressed so I'll open this ticket and another so they can be handled separately.
I recently updated Appointments+ to 1.7, WordPress to 4.5, and later Divi to help with my first issue. The form now works, users can select the date and enter their information and submit the form. The admin immediately gets and email saying an appointment has been cancelled instead of an appointment needs confirmation (even so, the appointment in admin is in pending, not in removed).
Once I go into admin and approve the pending appointment, the user and admin get two copies of the automated emails. I'd like both of these issues fixed for a better user experience.