I'm using Turbo Tax to file an amendment to my 2019 return. The Form 1040-X generated by Turbo Tax is mostly blank, except for line 18

 

After you file

Why are you amending?  What are you trying to change?

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After you file

I got an additional W-2 after I filed for some miscellaneous income (less than $200).  So I added that income and the associated taxes paid.

After you file

Your amendment should not be blank.  Something is not working correctly.