It is possible that you entered the transaction last year and correctly posted the rollover without the additional 1099-R.
Please go back to your original 2020 tax return.
On line 5a you will see the amount you withdrew from your 401-K.
If line 5b says ROLLOVER, and the amount in Taxable amount is zero, you do not have to amend the return.
If this is the case you do not have to amend the tax return. You can store the 1099-R with your 2020 tax information.
Edited 03/08/2022
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
