To clarify - that new Youtube link above is an updated video, showing how Art-Net Output to Localhost didn't work. I show how I think the issue is the Universes > External Universes column.
Although, @ 1:56 in the video I show how Capture's Connectivity Status is receiving Art-Net, but still nothing. I wonder if I'm doing something with the DMX Profile inside of Library, or if I'm doing something wrong inside the Live View > Gear Icon > Sequential > Channel ?
There are no tutorial guides for SoundSwitch and Capture, so I'd even be happy to screenshare and see if we can fix this together really quick. Whatever works.