Retirement tax questions

Yes, I agree about having to file amended taxes.  In my 40+ years of filing taxes, I've never had to do that (but will need to do so this year).  I saw a post from a TT support expert that said there's a "bright spot" in TT this year which is that you can now e-file amended returns.   For me, another "bright spot" is that I just received a paper mailed notice that they completed my 2019 return (yes, you read that correctly) but can't send funds electronically (presumably because it's last year's return?)  The letter said to expect a paper check in 2-4 weeks.