"earlier 1040 I prepared"
This sounds like you have several TurboTax files on your computer.
The file used must be the file that you submitted to the IRS, as submitted to the IRS.
If you have two or more tax files for your NJ filing and you opened and amended the wrong one, delete it and any other inapplicable ones and open the correct one.
Be careful not to delete the true tax file.
