We updated QB to version 9.0 some time ago and it seems that we've been having problems with agents' resource monitoring ever since.
All the indicators (CPU, Physical memory etc) on agent's Overview are displayed as 0.

In logs we find a lot of entries like this

[MeasurementPollingTask] ERROR com.pmease.quickbuild.plugin.measurement.core.poller.MeasurementPollingTask - Collecting measurement data failed.
    java.lang.RuntimeException: java.nio.file.NoSuchFileException: \usr

In Grid management plugin settings, in field "Monitor disk" we have a comma separated list of disks (C:/, Q:/, /usr etc). It looks like - once one of them is not found on an agent, an exception is thrown and metrics are not collected even from existing disks.

This list of disks to monitor has been configured like this for years and didn't cause any problems before, so it must have worked in a different way in previous versions. It would be great if the disks from the list that are not found on an agent were just ignored. Thank you