I know it sounds simple, but it's often overlooked. Could you try restarting your device? If that doesn't help, try a quick clean reinstall of the app. Just follow these steps.
Try to disable Hardware Acceleration, just click on the spotify Menu in your Menu Bar next to the Apple Menu, just find Hardware Acceleration and next click on it to disable then confirm to restart Spotify.
Make sure to install Spotify version 1.1.16
Keep me posted :)
LoxerRock Star 16
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