snmpcollector not showing all interfaces

Document ID : KB000102709
Last Modified Date : 19/06/2018
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Issue:
snmpcollector interface metrics missing for switches under the Interfaces Tab.

USM Interfaces Tab view with missing interface metrics
Environment:
- UIM 8.5.1 SP1
- snmpcollector v3.43
Cause:
- wrong (custom) template being applied versus the default template
- snmpcollector log showed:
NetworkInterface","customProperties":{"CertificationName":"custom_<xxxxxxx>-StackPortStatus","ComponentId":"s16","ConfigItemId":"C7a72e1ded6aa7275c6f3730eb5780697","ConfigItemName":"3001.0","ConfigItemType":
"11.1","DeviceId":"Db240860da6074d005df9c5eef762e28b","MetricFamilyCiType":"11.1","MetricFamilyName":"NormalizedPortInfo"},"id":"
snmpcollector.Db240860da6074d005df9c5eef762e28b.NormalizedPortInfo.s16","label":"3001.0","typeName":"Interface.hasMonitors"}

This "CertificationName":"custom_xxxxxxx-StackPortStatus" was being applied to the interfaces for the Cisco switches/devices instead of the default Normalized-Ports metric family.
Resolution:
Removing the custom certification template and then forcing a rediscovery in the snmpcollector probe resolved the problem with the missing interfaces/metrics.