scheduled configuration backup is not working on ISE 3.3 patch-4

[adamscottmaster2013]

Environment is 3.3 patch-4.  I have a configuration backup and an operation backup scheduled daily at 12am and 2pm, respectively.  The operation backup is working fine but the configuration backup is NOT.  I can manually backup the configuration from both CLI and through the GUI.  Furthermore, "show repository" and from the GUI, I can see backup configuration files that I manually backup, so everything looks correct.  I even removed the backup schedule and added it back at least three times but it is still not working.  I am running out of ideas.  

Thoughts?

[ahollifield]

What does the GUI show? No errors at all? Is a TAC case open?

[adamscottmaster2013]

The GUI shows operation backup but no configuration backup with the exception of the last time it was manually backup by me.  Yes, I opened a ticket with TAC, waiting to hear back. 

[Arne Bier]

Tried "Application stop" and reload?  Operations Audit might hold some clues. Smells like a TAC case.

[adamscottmaster2013]

I see operations backup audit but no backup configuration audit.

[adamscottmaster2013]

Update:  I am able to resolve the issue.  I had to create a new repository and a new pre-share key.  Once I did that, the scheduled backup starts working again for the past two days.  Create a new repository but using the existing pre-share key did NOT work.