I received a rebate when I filed my 1040-SR. When I amend my tax in Turbo Tax it shows "0" in column A (Original Amount) and the full amount I am now due (original plus amended) in Column "B" (Net Change). This does not effect column C (Correct Amount), but the form is not correct.
@cbthies exactly what happened to me. I received the rebate on original 1040 but on 1040x it shows 0 on column A then column B and C is the amount on my line 30 of my original 1040. The IRS returned my 1040x and says explain your input on line 15. not sure if something wrong with the software.