I have the same problem with 2024 return. I previously imported 1099s from a financial institution and added some data (shares basis, foreign taxes etc) . I then later imported a new 1099 from that financial institution (deselecting the prior downloaded forms) only to find that ALL the prior imports from that financial institution were deleted, along with all my adds and ONLY the selected form is now in TurboTax. I tried the "delete cookies/history" on the browser but got the same resort. TurboTax has a serious BUG that needs to be fixed !!!! If you deselect an imported form then that form already in TurboTax is DELETED from you tax file !!!!
