I have configured SNMP details for several switch stacks without issue using the config below, however I am having an issue with two switch stacks.  PI is reporting that the affected devices are both SNMP/Ping reachable, but cannot pull the interface...

When trying to archive config from our Nexus 7700 devices, I am presented with the 'No device package found for the specified device.' error in the job dashboard.Nexus 9000 works fine...Is this a known issue with PI 3.0? Thanks