After you file

Let's start over.  You filed a 2019 return in 2020?  Did you get the first refund (or pay a tax due)?  Then why did you need to amend?  When did you amend?  You had to print and mail the amended 2019 return.  If you mailed it this year it will take a very long time.  The IRS is way behind especially for mailed returns.