Are your personal Qobuz playlists sometimes not showing at all? This is the solution to my problem, which I was having on my Mac Airbook M1.
It turns out that sometimes I was logging on to the Qobuz site using my Username and a Password, but other times I was logging on using “Sign in with Apple”. I was always signed on to Qobuz on Audirvana with my Qobuz Username and Password.
When signed on to the Qobuz web site with “Sign in with Apple”, Audirvana would not retrieve my personal playlists, even through I was in the same account on the Qobuz site. Using the different sign in method broke the connection between Audirvana and my personal Qobuz playlists.
SOLUTION: Make sure you are signing on to the Qobuz site, and Qobuz/Audirvana, with the same Username and Password.