Volume with Spotify issues

Hi Volumio lovers
I have issues with Volumio using Spotify.
After few tests I think that I have found the problem. I was using in playback option/volume options the software mixer type. It is very usefull to choose the correct volume directly from my smartphone. In this case no sound is coming from Spotify, I have absolutly no problem with the music coming from my NAS.
If I change the mixer type to ´none then the sound is ok coming from any source.
So I have the choice between Spotify and software volume adjustment :imp: , It is a pity :confused: … please help :cry: