And what process are you measuring? Is it possible that that data read is an actual measurement rather than an error? Have you tried with an update? Take a look at enableiot/iotkit-agent · GitHub and make sure you are running the latest updates available.
Thanks Sergio. It could be because of the version difference. I will update the client.
(It is bogus data, as the value does not show up in table; it only appears in the chart).
Thanks for your quick help!