Deductions & credits

Don't mark it as corrected if the box isn't checked, but you should enter it.   And, only file the amended return if it results in a change in your refund or tax due amount.    When you enter the 1099-SA, TurboTax will ask you if the distribution was spent only on qualified medical expenses.   Once you mark that box, the tax is removed as the distribution is not taxable.   Did you answer Yes on that screen?