On the Pennsylvania PA20S, why does TurboTax preselect "exempt from income tax withholding"?

[PA20SisComplicated]

It was necessary to use the override feature, to deselect the checkbox, because there is no employee who is exempt from income tax withholding.

[Anonymous_]

You might have to contact Support for this on Monday.

What is the TurboTax phone number? (intuit.com)