I have an account with Tidal. It is a trial account that I canceled, but it will remain active until 12/12/2018. The Tidal player works. When I successfully connect with Audirvana, I do get to browse selections. However, when I go to play an album, the software goes to play it, but the buffer does not get loaded with the music in the track. It just hangs there doing nothing.
I have a 2012 Mac Mini running Sierra. I am using the latest version of Audirvana Plus. I wonder if the cancellation affected the Audirvana access to the music service, but not the native app of Tidal?
PS I can successfully play tracks on Qobuz.