After you file

I downloaded the desktop software for MAC to amend my 2018 which has been already filed with Turbo that year, however, none of the information was imported over? I had no issues with my 2017 and all the info from 2017 was already there including my refund amounts. This is not the case with 2018 and even tho I click on amend a return it is asking I enter all my info including my W-2 again.