2024 Win PC version. Must manually delete any "backup" tax2023 file(s) (Beginning with a tilde. ~2023 LastName FirstIni Form 1040 Individual Tax Return.tax2023). TT 2024 only knew my name (no address, no dependents, other details) after transferring in my 2023 return (and not my ~2023 one). I exited without saving, found and deleted the ~2023 backup, then started over in TT, afterwhich things were back to normal (i.e. successful 2023 transfer into 2024). Over and out / not looking for a reply.