I have the exact same problem.  Prepared a return for 2023 tax year at beginning of February.  Netfile was closed so I waited until today to file.  But now I cannot find the return that I had prepared to file yet the software was bought and paid for.  The rep on the phone was not useful and just referred me here.  I logged in with the proper account and still nothing showing up for a 2023 tax return.

@Bsmiles Please make sure to sign in into the correct year and use the right credentials to continue the return to file. You can also use Forgot my Username/Password option to recover your account details.

Thanks for choosing TurboTax.