After upgrading to Operator Console 20.3.3, when viewing network devices in Operator Console that are monitored only by the SNMPCollector probe, they always say "no metrics found" on the main details page.
If I go to the Metrics page I can see plenty of metrics in the metric viewer, but the main device details page always says "No Metrics Found."
This is a known issue/defect in 20.3.3.
Release : 20.3
Component : UIM OPERATOR CONSOLE - METRIC VIEWER
This is resolved by the UIM/OC 20.33HF1 patch available here: