I still experience a crash every several hours while editing. Suddenly, the editor will zoom in on a corner of the chart so that I'm only seeing part of the left side of the chart and the chord symbols are suddenly about twice their normal size. If I try various things to recover, the screen always goes completely black. Just exiting and reentering iReal Pro doesn't help; I have to reboot my iPhone, which always solves the problem . . . 'til next time.
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