With vRanger 5.2.x and previously, cataloging processes ran simultaneously with the backup.
After upgrading to vRanger 5.3.x, cataloging runs before data is backed up.
This change was made to resolve conflicts with the cataloging process and hot-add backups.
With vRanger 5.3.x, this is the expected behavior. Cataloging is completed before data is backed up.
The time it takes and the amount of data generated by cataloging should have a minimal effect on the overall backup task.