Deleting Groups

I'm cleaning up unneeded groups and when I delete a group itsname keeps coming back to the list. If I try to open it, I get amessage that says it can't find the group and has it been erased byanother user? This one particular group I deleted when I was loggedin as Admin. The group that I deleted when I was logged in asmyself stays gone.

Do these ever go away permanently?SolidworksSolidworks Pdm enterprise Pdm