Well, it is an interesting case as when the release was norpt available, I could not use the App, but could stream my music from my iPad (Music App), so I kept practicing with the four preset tones. Now, I experience far more loss of connection as in the past, but music still can be streamed, either from the App or Music.
So I would no longer say that the connection is fully lost, only for the tone, which is quite puzzling, isn't it!