So are you now using Chromecast rather than Qobuz Connect?I just found the solution to my problem of no connection available to Wiim Pro from Qobuz Connect Beta.
It turns out that I activated the Google Chromecast Audio function within the Wiim Home app and voilá, I can now see my Wiim Pro device from the Qobuz beta app and thus be able to listen to music controlled from it.