SQL Staging full database recovery failure

 

Scenario:

NBU 7.5.0.4 on master/media server and client
Windows 2008 R2 on master and client

SQL Full, Differential as well as Transaction Log backups successful (see SQL-test.jpg attachments).

Scripts used in Scripts.txt

We are able to perform a Full Staged Recovery up to the Differential Backup, not the Transaction Logs.
Screenshot (Restore.jpg) shows Full and Diff grouped together at the top.

All Transaction Log backups show up separately at the bottom of the screen not grouped under the Full and the Diff.
Right-Click, Properties of the log backups does not have the Recovery Set tab.
'Stage Full Recovery' option is also greyed out.

All attempts to restore any of the Transaction logs fail with status 2809 and 13:

 

11/21/2012 11:42:21 AM - Info bpbrm(pid=6616) listening for client connection         
11/21/2012 11:42:21 AM - requesting resource @aaaal
11/21/2012 11:42:21 AM - granted resource MediaID=@aaaal;DiskVolume=_PhysicalLSU;DiskPool=Dxi;Path=_PhysicalLSU;StorageServer=-LSU_10.5.1.177;MediaServer=Master
11/21/2012 11:42:22 AM - Info bpbrm(pid=6616) accepted connection from client         
11/21/2012 11:42:22 AM - Info tar32(pid=2628) Restore started           
11/21/2012 11:42:22 AM - connected
11/21/2012 11:42:22 AM - Info bptm(pid=5644) start            
11/21/2012 11:42:22 AM - started process bptm (5644)
11/21/2012 11:42:22 AM - Info bpdm(pid=5644) reading backup image          
11/21/2012 11:42:23 AM - Info bptm(pid=5644) using 30 data buffers         
11/21/2012 11:42:24 AM - begin reading
11/21/2012 11:42:29 AM - Error bpbrm(pid=6616) socket read failed, An existing connection was forcibly closed by the remote host.  (10054)
11/21/2012 11:42:29 AM - Info tar32(pid=2628) done. status: 13: file read failed       
11/21/2012 11:42:29 AM - Error bpbrm(pid=6616) client restore EXIT STATUS 13: file read failed     
11/21/2012 11:42:29 AM - restored image be-test_1353414007 - (file read failed(13)); restore time 00:00:08
11/21/2012 11:42:29 AM - end Restore; elapsed time: 00:00:09
MS-SQL-Server policy restore error(2809)

 

I have in all honesty not looked at any of the logs, but I am 100% sure that the issue is with the fact that the Full, Diff and log backups are not seen as a full set.

We have been doing SQL backups for many years at many customer sites, but have never experienced this.
We were initially unable to select the log backups in the Restore GUI: https://www-secure.symantec.com/connect/forums/netbackup-ms-sql-client-1  
EEB from Symantec Support fixed the 'App crash' issue.

We probably need to log another Support call, but I will do anything humanly possible to avoid that...