Spotify won't play any sound after wake up - Mac OSX Yosemite & Focusrite Scarlett 18i20

[cleptric]

After I wake up my MacBook Pro 15" Mid 2014 Spotiffy won't play any sound. The player starts the song, the clock is running but no sound comes out of the speakers. I use a Focusrite Scarllet 18i20 interface. 
However, any other applciation plays sound well. If I restart Spotify, erverything is back to normal. 

[nashvilletrain]

Do you have any apdates? This issue is very annoying.

Reproduces on my MBA mid 2012 with the latest Yosemite and doesn't reproduce on my MBP Retina Early 2015.

[Gautam]

I have this problem on my mid-2012 MB pro as well. On the latest Yosemite. But it has been going on for a while, and no update has so far fixed it...

[pereljon]

In advanced settings (from preferences) try turning off "Set the same volume level for all tracks".
Cheers,
JP