Trouble testing locally

[path-racer]

I'm trying to test a simple app to receive UDP packets on a port, and print out the payload, before passing them on. However, testing locally, the program isn't receiving any of the packets sent to the port as expected.

I've verified the correct interface index, all setup of the socket and program create without a hitch, log1.ps logs show no errors, but still XskRingConsumerReserve(&_rx_ring, ...) never returns 1. Likewise, the xskfwd.exe example app doesn't echo frames sent to port 1234 either, as if it isn't seeing anything received.

I'm using Windows 11 Pro. Sending packets with Packet Sender, and verified that packets are hitting the correct interface and port with WireShark.

What are my next steps to troubleshoot? Thanks!