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[Margo]

@Nick.Jones,

@Nick.Jones

Do you know what lines/functions tend to cause this?

I can't tell exactly what lines of the code are causing the error. You need to debug your code.

@Nick.Jones

In spRendered(), I also had a few functions with switches in them, to update field values, is it more stable to put functions outside of spRendered?

It doesn't matter where to declare the function: inside or outside spRendered().