Row 20 is Amount You Owe
Row 22 is Amount You Want Refunded to You
There should not be numbers in both of those, since they are mutually exclusive. Have you run a program update?
Form 1040X (Rev. January 2018) (irs.gov)
Also see:
How do I amend my 2018 return in the TurboTax CD/D... (intuit.com)
