Investors & landlords

I used TTX CD for the 2017-2019 returns.  My hard drive crashed January 2020 and I lost all the TTX pdf copies of my returns.  (I had not backed up any files)  I have paper copies.  In order to amend previous returns, will I have to also complete the 2017-2019 returns in TTX as they were originally filed then do the amended returns?