So at this moment, no solution. And yes you can ask for contexts to be exposed they can update it through the App-ID process so normally it will not take as long as a feature request.
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Which context are you using? Unknown-tcp? That will only work for apps that are currently not IDed, so that will not work. snmp context are not exposed at this time to customer created vuln or app-id. You will have to submit a request to expose them.
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