Figured out to fix it in the 2023 desktop version.
Go to Forms
Open the 1040-X form
Click on the cell with the incorrect imported data and press CTRL-D to override the value (type in the correct value).
You need to do this for all of the cells with incorrect values on the 1040-X including the net change amounts back to $0.
After you correct line 20 back to $0, the top of the TTax page should also show $0.
Now you can go make your corrections (for example, in my case I needed to add another 1099-INT).
Hope it works for you as well.
