Quick Stats on Host not up-to-date

In VMware vSphere client (native and web client), sometimes you get this message in Summary tab of a host: “Configuration Issues: Quick stats on Host ‘xyz’ is not up-to-date”
Most of the times this message disappears after a while but sometimes it bothers for a long time. In those cases, a quick ‘Reconfigure for vSphere HA’ may clear the message.