Inconsistent Synthetic Backup. Revision With the Number is Duplicated on Cloud Backup Storage (code 1524)

Situation

A hybrid backup plan terminates with the following error: Duplicated revision number. Inconsistent synthetic backup. Revision with the number is duplicated on cloud backup storage

Cause

This error may occur when some parts of a hybrid backup plan uploaded the same synthetic revisions to the same backup destination as the regular (non-hybrid) backup plan.

Solution

To resolve this issue, you need to run a full backup without synthetic backup. To do this, proceed as follows:

1. Switch to the Backup Plans tab.
2. Find the plan that caused this error.
3. Click Edit.
4. Follow the backup wizard to the Advanced Options step.
5. On the Advanced Options step, unselect the Use synthetic full backup check box.

6. Finish the backup wizard to save the plan configuration.
7. Run a full backup.