The default "VM Rebooted" warning alert has been disabled and replaced with a critical alert called "Core VM Down > 10 mins" in Orion. This alert works fine in Orion and sends the appropriate email using NPM but it shows up as "VM Rebooted" in Alert Central. I have removed and added the Orion server to Alert Central a couple of times and the problem is still there. Other alerts seem to be working correctly. Anyone seen this before?
My colleague just figured this one out. In Orion, on the alert summary page, there is an Alert Integration section at the very bottom. You must modify that if you copied from a "canned" alert. Hope this helps if anyone else has this issue.