There are no known issues with TurboTax's kicker computation.
According to 38 Kicker (Oregon surplus) credit in Oregon's Form OR-40 Instructions:
In general, your kicker is a percentage of your total Oregon personal income tax liability for the prior year, as adjusted or amended. Your total personal income tax liability is your Oregon income tax before all payments or credits other than the credit for taxes paid to another state. For 2023, your kicker is 44.28 percent of your 2022 total Oregon personal income tax liability.
[Bolding mine.]
