Transfer of information from TurboTax 2023 to TurboTax 2024

My friend is trying to start his 2024 taxes but cannot get it to load his 2023 return data into his 2024.  He has logged on with the same identification, he can see the file (ending in .tax2023) but when he tries, he gets an error message:

Unfortunately we weren't able to transfer your information from the file to your current tax return. Please move the file to a different location and try again.

Suggestions appreciated.  Thanks in advance.