Sometimes SCOM can be showing irrelevant performance graphs for powered off VMs:
This is an expected behavior for the current version of nworks. When a virtual machine is powered off, WMI cache still contains outdated data. That is why graphs in SCOM are updated improperly.
The current approach helps to decrease the stress on SCOM.
As a workaround, restart the WMI service on the nworks Collector machine.
Please be aware that we’re making changes which will restrict access to product updates for users without an active contract.