Form W-2 Box 1 Amount Not Carrying to Form 1040

Issue

After filling in information on Form W-2, the W-2 does not carry to Form 1040.
When looking at the W-2 in the attached forms list, the W-2 is missing the “T –“ or “S –“ indicator. 

Cause

The most likely cause is that a data conversion was done from a competitor tax software.
When the conversion was done, the taxpayer or spouse indicator was not properly set on the W-2.
There should be a “T –“ or “S –“ listed with the W-2 in the attached forms list. 

Resolution

To arrange the return so the W-2 carries to Form 1040, delete the W-2 and once again re-enter.