TurboTax only imports W-2 and Form 1099 tax data that is provided by the import partners who handle those forms. If the import partner provided incorrect tax year data, TurboTax cannot verify the accuracy of the tax data being imported. Nor can any other tax preparation software vendor who has import capabilities.
It is the taxpayer's responsibility to verify the information on the their tax return before filing.
Before starting to amend the tax return, wait for the tax refund to be received or the taxes due to be paid and processed by the IRS.
See this TurboTax support FAQ for amending a current year tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-federal-tax-return-curr...
