Power center poswer usage discrepancy

I received an alert from Power Center that I had gone over threshold on a server.

I logged in and saw that Power Center was reporting that one of my R720xd servers had spiked to 27801 watts. That's over 10 times it's normal usage and a draw that would have blown my circuit.

In DRAC for that server the power usage in the graphs did not reflect that same spike and usage during that time looked normal with Historical Peak power draw being within normal operation range.

What could have caused Power Center to report this seemingly non-existant spike?