Do you possibly have more than one TurboTax account? In order to access a prior year's return, you must use the EXACT account (same username and password) that you used when filing that return.
To see if you have more than one TurboTax account, please see the info below.
https://ttlc.intuit.com/replies/3302270
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
