Unable to rename-delete existing policy - error msg- SEP12RU4MP1

Hi All,

I have an existing exceptions policy that I am unable to rename/uncheck the "enable policy" / delete this policy. I can export it (size 4.7Mb).

I get this error message displayed : Request contents are invalid. [0x120c0000] .

I can create new policy and delete the same policy but can do nothing with an existing policy - even add a folder exception. Any ideas to have this policy deleted from database (note: policy is not in use and not assigned) . I had restore an older policy to replace this "corrupt" policy.

SEP12RU4MP1 installed.