Last years return is listed but I am unable to transfer it to this years.
Make sure you are transferring a tax file and not a pdf.
How to transfer last year’s return?
https://ttlc.intuit.com/turbotax-support/en-us/help-article/import-export-data-files/transfer-last-year-return-turbotax-online/L279eUvY2_US_en_US?uid=m6ayqk1s
if you're using online contact support. If you're using desktop, open the app and click on "start a new return". Your computer should find the 2024 file. After that, click on the transfer return icon. if it's not working contact support.