I've used Qobuz on a 2i and the 2022 Bluesound and it works great.
Sounds like a user account/login issue.
Bear in mid that there is no "Connect" API like Tidal and Spotify have, so, instead of using the Qobuz app for streaming, you need to use the much less user friendly Qobuz-ported app on the Bluesound streamer. It's klugey, but IMHO it's well worth it for the superior SQ.
Have you upgraded to the latest 4.2 software?? It helps a little.