Here is the link for the 2019 download. 2020 can be done online or with download through the TurboTax Website as well.https://turbotax.intuit.com/personal-taxes...
Please see the link below to get in contact with someone regarding your issue.https://ttlc.intuit.com/community/charges-and-fees/help/what-is-the-turbotax-audit...
Check each imported transaction. If any show a date a various then enter the correct date. If you continue to receive the error then delete the 1099B and enter ...