Although the IRS allows amended returns to be efiled starting with the 2019 tax year not ALL income tax programs are supporting this change for prior year returns ... they only support the current year but only until 10/15 when the efile season closes for DIY programs.
So if you are using the downloaded 2019 program to amend the 2019 return then in the FILE tab your ONLY option will be to print & mail in the 1040X.
