Windows backup getting code 69 invalid filelist specification

Hi,

We have a backup that is consistanly getting a code 69 invalid filelist specification . (incrementals, accelerated fulls and fulls) the vssadmin command shows no errors

Unable to backup System State or Shadow Copy. Please check the state of VSS and associated Writers.

I have attached logs to this thread and the vssadmin writers command results.

Windows 2003 sp2

Netbackup Client level 7.6.0.3

Fyi – media server size is 56TB