Can't eFile 2019 amended tax return (1040x)

I eFiled my 2019 taxes via TurboTax.  I realized that I forgot something rather important and am trying to amend my return with a 1040X.  I'm running into 2 issues with TurboTax 2019 Premiere:

  1. I can't put the "today's date" as 2021.  It will only accept dates between 1/1/2020 and 12/31/2020.
  2. It won't let me eFile my 1040X.  I know that beginning with 2019 taxes the IRS is allowing eFiling of the 1040X, but it doesn't seem to work.  Is there a certain date I have to wait in order to eFile?

Thanks for the help.