@ilg10402021 I agree with you. I save my original as one file and once I started my amend, I click SAVE AS new file so it does not overwrite the good file.
I have onedrive backup every version to the clound, so even if I overwrite, I can go back to a earlier version. Turbotax software engineer definitely did not do a good job here regarding amend return.
I dont think they make a lot of money or have a lot of use case for amend return.
