Also be aware that based on what I experienced in past years (including 2020) after five failed attempts to e-file, you have to mail the return to the IRS. Doesn't matter if the info is correct or not either it appears. Five failed e-file attempts and it appears the IRS locks you out from e-filing with no exceptions. So you'll have no choice but to print, sign and mail the return to the IRS.
I am assuming this did not change for the current tax filing year.
