Have you changed the Action attribute of the Savegroup Completion notification? This hould have the following
entry on Windows, in order to log to savegrp.log (change path to match your system if needed):
nsrlog -f "C:\Program Files\Legato\nsr\logs\savegrp.log"
You could always try to shutdown NW, rename the savegrp.log
to savegrp.old, restart NW and then run a scheduled
backup. The savegrp.log is only created when a scheduled backup runs, so you can´t just start the group from the gui.
Hope it helps!
Cheers!