Error 3310: "Use time data to create paychecks" is unknown

QuickBooks leaves this setting undecided for some employees until it is changed once. The fix is to change it and change it back:

1. Employees → Employee Center, right-click the employee, Edit Employee.
2. Payroll Info: untick Use time data to create paychecks, then OK.
3. Open the same employee screen again, tick it, then OK.

Then press Send again on that week. The hours go on the next sync, with no need to approve the week a second time.