BE 2014 Deduplication option from backup job is missing

hi

im using backup exec 2014 SP1 HF1 everything worked fine but suddenly on old and new job Client/Server Side Deduplication option is missing and i cant configure it anymore , i've checked Storage (its a local deduplication disk) and client-side deduplication is enabled on that dedup-disk.

after some more checking i find out that my deduplication ratio on a 6 TB disk is just 1:1.02!!! but when i calculate backup sets on that disk its stored more than 15 TB on that dedup disk . (i think Interface is showing wrong ratio)

also i upgraded my Backup Exec server to SP2 HF1 but thats not solved any of my problems .

backup exec 2014 SP2 HF1 (Software) - HP DL380 G6 - Local Disk Storage - Windows Server 2012 R2.

thanks