In nworks 5.6 and later, creation of the event filter is disabled by default. However, if the issue described above occurs, you will need to turn off the setting manually:
In nworks Web UI, go to the Enterprise Manager tab, select the Collector in the hierarchy on the left and click Advanced settings.
Find the EnableVcVerboseFilter setting and set it to False.
You will be prompted to restart the Collector. To do that, select the Collector and click the Restart button.
Applied changes will not influence monitoring accuracy.