Yes, your interpretation of the instructions are correct. The credit should flow from Schedule 3 to Form 1040 Line 31. There is nothing unusual with how the credit is being reported on your tax return. The has been done thousands of times by other users of the TurboTax software, desktop and online, for e-filing. Why you are having this difficulty is a mystery.
Hopefully TurboTax support will be able to give you the assistance required to get the Form 8962 included in your e-filing so that you do not have to print and mail the 2023 tax return.
