The above usually occurs when a template rule is used specifying ‘If start times conflict, template A supersedes template B’
An easy fix to resolve this, is to change the ‘effective date’ with the job.
1) Modify your job
2) Click ‘Schedule’
3) Click ‘Edit Schedule Details’
4) Click ‘Effective Date’
5) Change the date to todays or the date you wish to next run the backup.