Lost sound on Garage Band?

I mix playlists from iTunes in Garage Band.

Suddenly I lost all sound.

The mute button one each individual turned blue and started flashing.

Any suggestions what has gone wrong?

Thank you.

MacBook Pro with Retina display, OS X El Capitan (10.11.5), + iPhone 6 Plus & iPad Air 2

Posted on Aug 28, 2016 10:24 AM

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