You didn't say whether you are using TurboTax Online or the TurboTax Desktop software. I'm going to assume that you are using the TurboTax Desktop software in Windows. If that's not correct, post the correct information.
Make sure your desktop software is updated. On the Online menu click "Check for Updates."
Make sure you do not have an override on NJ-1040 line 31. When you look at Form NJ-1040 in forms mode, the space for the amount on line 31 should be white. If it's yellow, right-click the space for the amount. If Cancel Override is one of the choices on the pop-up menu, click on that and see if the amount appears.
Where do you see the amount on Worksheet F? NJ-1040 line 31 comes from line 6 of Worksheet F.
