There seems to be a discrepancy in the time of a scheduled back up or in the Emailed Back up log.
My backups are scheduled to run at 6:03pm and the log is reporting that the next back will occur at:
Next backup: 7/6/2017 10:03:00 PM - Full
Basically, exactly 4 hours later. I believe there needs to be a time adjustment applied to the log output time for next back up. I hope that the scheduled time is not the issue and the back up will run at the intended time.