This might be a new way for Intuit to intercept filings that might have a calculation error due to a bug in TurboTax.
There is presently a problem with tax returns that include Form 8606 Part 1 and distributions from inherited IRAs that is affecting many TurboTax users. Because the filing itself does not include the details of a Form 1099-R unless the Form 1099-R shows non-zero tax withholding, Intuit's e-filing processor probably can't know if the tax return includes a distribution from an inherited IRA or not and it might be that any tax return that includes Form 8606 Part 1 is getting rejected as a precaution, but I'm just speculating.
@macuser_22 , you might be interested.
