If you have been using the Desktop program in prior years didn't you notice you were using the Online version for 2019? Online would have been different than what you were used to. Like for starters you didn't download or install the program on your computer. And you didn't pay the fees until you were done and ready to file.
Were you able to transfer 2018 from your computer into the online version? Did you save your files to your computer after you filed? You might need to.
If you used the Online version you should always save both the PDF file and the tax data file each year (before online closes Oct. 15) so you have a copy when you need it or if you ever need to amend it in the future. You shouldn't rely on getting a copy from Turbo Tax. Or if you want to use the Desktop program next year so you can transfer from this year.
