Get your taxes done using TurboTax

I know this isn't quite the place to ask this question, but I can't get an answer to this question.  I am using 2021 TurboTax Premier.  I received an amended 2019 State Income Tax Refund in 2020.  I entered it into TurboTax, which did not asked whether I took the standard deduction in 2019, which I did.  TurboTax entered that into the State and Local Income Tax Worksheet, and placed it into Part VII, that it is taxable, why is it taxable when I took the standard deduction that year?