This is also happening on a 2020 return . Got a copy of the IRS tax transcript and also put a 0 (zero) and still getting rejects for the third time. The answer should not be to tell a person to mail. When other software does not give this error repeatedly. I see clients coming into H &R Block after 4 rejects for AGI on Turbotax and when done in H&R Block software with approve on line which also ask for AGI the return goes through
