Turbotax premier 2024 for taxable income of 1.04 million (we sold stock), TT calculated the tax due is 499000, much higher than tax table calc of 310000 by hand, bug?

How to report this bug and get it fixed asap? The highest marginal tax rate should 37%, so total tax liability should around 310000; not 499000. I have trusted TT calculation for the last 20 years.