You should compare your tax returns that were generated by each TurboTax version, if you have copies of both of them to help determine what the difference is.
You could have made an entry error. The results should be the same if everything was entered the same.
To qualify for the retirement credit:
You can get back to your TurboTax entry screens for this credit by doing the following:
If you can not resolve this, you can try contacting TurboTax Customer Service using this link: Turbo Tax Customer Service
Your TurboTax screens will look something like this: