V-79-57344-34108 - An unexpected error occurred when cleaning up snapshot volumes. Confirm that all snapped volumes are correctly resynchronized with the original volumes. *********** is a corrupt file. This file cannot verify.

Hi,

We use BackupExec 2012 SP4 to backup (with an agent installed) a 2008 r2 server that holds among other things a small sql (CCSSQL). 

The schedualed backup of the server usually fails with the response code: V-79-57344-34108, An unexpected error occurred when cleaning up snapshot volumes. Confirm that all snapped volumes are correctly resynchronized with the original volumes. 

But, whenever I choose to manually backup it, by clicking on 'Run next backup now', the job is always succesful. 

The job fails because it cannot verify a couple of files, but I have to backup them, they seem to be important. 

i've already tried all the the KB regarding code V-79-57344-34108 and non of them seem to apply to my problem.

Did any one encounter such a mystery? 

Many Thanks,

Nadav.