Disk Backup capacity not show in DPM 2012 R2

Hi,

We are using System Center DPM 2012 R2.we are try to bakup SQL DB using DPM.backup is runinng without error.my problem is

after comlete the backup Disk backup is 0 capacity but tape backup capacity is available.please refer below 01 and 02 images.

01.

02.

and

We are schedule disk backup and tape backup different time .Please refer the following images time is same.

we are waiting for your answer.

Thanks.