QuartzCore repaintDisplayLink crash

After I published my game to the App Store, I keep getting crash reports that all points to the function repaintDisplayLink that is inside the class UnityAppController+Rendering.mm. I have also attached screenshots of the crash report. I don't know how to reproduce the crash.

I have a crash rate of 5% of total sessions. I am using Xcode 7.2 and Unity 5.3.1p3.

Any idea what causes this? Or a workaround?

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