ESXi 5.5 and Solarwinds NPM 10.7.2 using SNMPv3

Hello,

I have configured our ESXi 5.5 host to use SNMPv3. However, when I try to add this specific esxi host into solarwinds using the credentials that I setup it will fail. I can see the packets getting to the ESX through tcp dum, and I can see ESX responding. Not sure however if the responses are good/ not but I know it fails. When I use snmp v2c, I can add the host into Solarwinds. Is this a known compatibility issue between NPM 10.7.2 and ESXi 5.5? Anyone experienced thesame issue? Your help is greatly appreciated.