Failed backups may not be retried if schedule is limited to certain days of the week
A failed backup may not be retried if the retry is scheduled on a day different from the start day.
Issue may occur if the day on which retry is scheduled is not enabled in the schedule.
If you face this issue, please upgrade to the latest 2.X.X version
Reference defect number - 196a00ef22, fixed in v2.1.0 latest patch from February 7, 2017