Please clarify what version of TurboTax you are using. Did you use the same version to prepare your 2020 taxes?
If Online, are you using the same User ID and password as last year?
i am using online with the same user info. it's pulling in everything but my schedule c - even if i manually import.
What version of TurboTax are you using? Has to be Home and Business or Self-Employment for a schedule C