OSPF Neighbor down Alert

We are using NPM 11.0.1 monitoring OSPF neighbor events on our Cisco equipment. Several times now this event was logged:

12/5/2014 2:22 AM  The neighbor 10.225.3.198 on Node ourhost.com went down.

When checking the switch for corresponding neighbor events on that date and time, none were found. Why is this alert being generated in Solarwinds when the L3 switch/router does not log any OSPF events?

Any help would be appreciated

Thanks!!