vSphere 5.5 and BackupExec 2013 with vmware backup license
I regularly back up VMs from vsphere using backupexec and recently I tried a test restore. I didn't want to touch any working VMs so I created a new folder and in the restore job changed the path to that folder. The job ran and showed 90gb of data transfered.
Back on the esxi server, I saw the datastore freespace shrink by 90gb, but the folder I chose as the destination (and which was verified as the destination in the backupexec logs) was completely EMPTY.
I searched everywhere on the datastore but couldn't find the files restored from tape. I also used veeam backup file tool, to search the datastore (besides the browse datastore in vsphere client).
Finally I deleted the target test-restore folder and it deleted immediately, but the free space on my datastore is still 90gb less than when I began.
How can I clean up these invisible files and where are they?