Backup Exec 2014 SP2 not deleting Expired Backup Sets

HI

 BE 2014 With Deduplication Disk( upgraded From BE 2012 SP4) is not deleting Expired "Exchange 2013" VM & Database Backups .

i tried Manually Expiring Backup Sets , Activated delete last successful backup and Reclaim Deduplication Disk Space manually with no hope.

Local Deduplication Disk is my main Storage for daily backups ,now its full and i cant delete old Exchange 2013 Backup Sets (2 TB) , can anyone help me with this problem?