I have a form that has:

• Name (text field)
• Email (text field)
• Address (text field)
• City (text field)
• State (dropdown)
• Zip (text field)
• Is your billing address the same as your mailing address (Yes/No)
• If "No"
  • Address (text field)
  • City (text field)
  • State (dropdown) **Doesn't show/hide, but is in the HTML
  • Zip (text field)

I've tried every type of form fill, and they all work except dropdowns. Does anyone know what kind of file, function of setting I need to check/update? Maybe some default phrases that would be used to set up the function for other things like text fields and radio buttons?