Did you go through the amendment interview to add your W-2? Or, did you just add the additional W-2 to your original filed & accepted return, & e-file? Amended returns cannot be e-filed, they must be mailed.
If you did not go through the amendment interview to add your additional W-2, then you need to undo the changes you made to your original return, then amend your return.
How do I amend a 2018 return in TurboTax?-------------------------
If you did go through the amendment interview, you need to print it out and mail in the return.
How do I print my amended return if I've closed out of it?
