Capital Loss Carryover Is Not Offsetting Federal Tax Due

I had a Capital Gain of $70,000 in 2023, but also had a Capital Loss Carryover from 2022 far in excess of this amount.  Turbo Tax Deluxe on my Windows computer has correctly reduced the Carryover amount to be applied to 2024 in the right amount, but it also shows a $2,500 increase in its running total of Federal Taxes Due.  The Capital Loss Carryover should completely absorb the Capital Gain and there should be no impact on my tax liability for the year.  Does anyone have an idea why Turbo Tax is making this error?