hi my friend, I have similar pc components like you, to watch 422 feeds in windows.
If are so kind to send me a picture of your codecs configuration in dbvdream?
I use lav filters.
Thanks
As i said in the forum, go to https://legitfta.com/forum, and ask questions. El bandido is very knowledge guy, who is the author of the TNAP image, after he was in contact with the greek manufacturer of edition box. They build & test software for these boxes.