2024 1040-SR Line 6b Calculation Error - Risk of IRS tax liability

2024 1040-SR Line 6b TurboTax Calculation Error  - Status: Serious risk of IRS tax liability

Line 6a : Social Security Benefits: $38,692

Line 6b : Incorrect Calculation by TurboTax shows as: $18,826

Result: Taxable Income Calculation Error of:  $19,866  - Line 6b should be $32,888  ($38,692 * 85%).

Result: Line 15 shows my taxable income as: $80,467 when the actual taxable income should be : $100,333.

MAJOR CALCULATION ERROR could result in IRS tax liability.

I have already paid for the online e-file, but have NOT filed due to this error.

When will you fix this in the online (web-based) application?  Please advise ASAP.

Mr. Carroll Izard