dlo 7.6 - failed to read data from chunks, missing attachment pst

hi,

have just upgraded to 7.6 dlo server, and upgraded a couple of agents to 7.6.  i was told that doing this upgrade would resolve the failed to read data from chunks issue when restoring PST files, and missing attachments.

i have just done another restore, and at the end of the restore, it says total number of attachments=25470, number of attachments restore=6553. failed to read data from chunk file.

hoping someone can shed some light on what we are doing wrong, and whether this should be happening.

thanks

Phil.