When accessing past year returns on TTax online, why is it asking me to upload documents for the year?

In the past it would give me the option to download a previous year's return, but now it's prompting me to do an upload first? Should I proceed with the upload so I can view the past return? I chose 2016 as an example but it does this anything two years and older, while last year's is still available online.TTaxPastReturn2016.JPG.