I spent some time on the telephone with TurboTax support. Refile for 2019 and prior years is not supported.
It is disappointing that
(1) There is no explicit statement on the website that 2019 online is no longer accessible.
(2) The website still makes it appear that it is accessible
(3) Support staff have not been briefed on the change as the person I spoke with thought 2019 was still accessible.
