After you file

@Critter-3   Thanks again. I had a backup for the tax file.  So instead cancelling and undoing Amendment, I start over the Amendment again from the beginning.

 

As soon as I start the Amendment, even before I update the W2 with the corrected values, in the 1040-X I still see the wrong higher AGI in line 1.  

 

Even when I complete the step-by-step process and ensure that 1040-X is complete I still get the same result. 

That is the Refund-O-Meter and 1040-X both showing a huge refund.

 

However as before the Summary of the Amendment at the end of Step-By-Step process shows correct original AGI !

 

Best Regards