TurboTax is optimized to get you the maximum legal refund. The default setting is for the Standard Deduction, before you start entering itemized deductions. Any refund or tax due showing is based on the Standard Deduction, until you have entered enough itemized deductions to exceed the Standard Deduction.
In your specific case, the $1729 federal refund was based on the assumption that you would file using the Standard Deduction, even as you were entering itemized deductions into TurboTax. Only if your itemized deductions totaled $26,001 or more would you have seen a change in your refund.
