I upgraded from NPM 9.5 to 9.5 SP2 a few weeks ago and ever since then, it seems like I get two emails for many of my alerts. They always come through one minute apart. I've gone into the Alert Manager to verify them and they appear to be correct. We just started using the product recently so there is not that much there and I can always delete the alert definitions and recreate them to see if it helps.
I was just wondering if anyone else has hit this and it is a known bug or just something in my system.