Trouble with ASA & NetflowAnalyzer config

Hi, I am trying to configure netflow to work between an ASA and a PC. On the ASA I have the config in place and via show flow-export counters, I see the counts incrementing. The config is set to send to the PC's IP on 9996. On the PC, I can access the web interface for NetFlow Analyzer and it is also set for 9996. Via Wireshark, I see packets for UDP 9996 hitting the PC. I'm not, however able to add or see any devices in the Netflow Analyzer tool. I tried adding an auto discovery and a direct add of a device and neither has worked. I added an snmp-server host inside (pc with NFA on it IP) community netflow and I am using that snmp profile when trying to add in either place that I tried. I have tried IfName/IfDescription/IfAlias and in all cases it is failing. I get a pop up error near the top that indicates "Missing translation: No interface found. Device Adding Failed."

Can anyone assist?

Thanks,

Marianne