Flow is showing null interface for either incoming or outgoing port

I am working on a visualization tool that shows the data flowing across the network. It works well with all manor of devices but with vyos 1.1.6 and 1.2 if you listen on the line the flow being sent to the collector either has a null (0) interface for the ingress Ethernet port or egress. I tried to upgrade to see if that would help but it did not. I was wondering if the flow accounting was looking at the wrong field when sending the flows to the collector?


Thanks in advance for the help!!