Raspberry Pi 3 & Sound Blaster X-Fi

[draco_n]

I connected my Sound Blaster card to Raspberry Pi 3 and it works just fine, I can play everything via this card. Everything BUT Spotify. 

When I disable the built-in pi card Spotify says "This track is not available..." for whatever I'm trying to play. When the built-in card is enabled Spotify only sends sound to the output specified in raspi-config file so either micro-jack or HDMI. Do you have any ideas how to fix it?

Any help will be much appreciated.