OpManager v12 (free edition) can recognize SNMPv1 trap but cannot recognize SNMPv2c trap

OpManager v12 (free edition) can recognize SNMPv1 trap but cannot recognize SNMPv2c trap

I had import the SNMP mib file of a device to OpManager v12 (free edition).

I find that if my device set the SNMP version as version 1, OpManager can recognize the trap details. 

However, if my device set the SNMP version as version 2c, OpManager cannot recognize the trap details and treat those as "No Trap Parser defined".

Please help to advise on this!

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