Thanks for the suggestions, not sure I fully understand.
My Innous Mini (sw ver 3.3.4) works well with Qobuz. Spotify works well on phone. However when I select Innous player in the Spotify app the timecounter of the audio file in Spotify jumps back to 00:00 and stays 00:00 no matter what I do: no sound. I already tried: reinstall Spotify app, reinstall Innous Sense app, remove Qobuz. It has worked before. Before that the problem appeared sometimes, now permanent (about a week now) .