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[Cantor, Scott]

> Any idea why that error would be produced then? I'm not sure where to
> begin troubleshooting this.

The error would mean you didn't include that wiring, I suppose, given where it's crashing. I don't know why you would have changed the example that radically, but "custom" is null, and the only way it's null is if the value supplied to the scripted function bean is null or if it's just not set.

-- Scott