Ok ... so you used the 2020 info on the 2021 forms and successfully efiled it ? Then you amended the return and you did what ? Did you correctly change all the wrong 2020 information to the correct 2021 information and efiled the 1040X (correct way ... this files the 2021 return automatically ... no further filing required) ? Or did you simply zero everything out so you filed a 1040X with zeros in column C (wrong way) ?
