At the bottom of each alert listing page, if I select
"Selected" or "Entire Page" the alerts get properly
moved to the archive database. If I try to select
"Entire Query" (which makes sense when one has tens of
thousands of alerts they want to archive at once), the
operation fails and simply reports that:
"No alerts were selected or the Archive alert(s) (copy)
was not successful"
The same problem occurs for either copy or move, but
delete seems to work fine, even with over 100,000
alerts being deleted at once.