Backup archiving does not work as expected


Dear UrBackup Users,
i config a scheduled backup archiving as in attachment:

but I definitely made a mistake:
i would an archive every week on sunday locked upto 1 month and another every first month day locked upto two months.
Well, i have only an archive at last day of the month locked upto two months

Any suggestion?
Is there a best practice for hystorical archive management?