@mesquitebeanI restarted Turbo Tax 2025 and was then successfully able to complete the transfer of 2024 data.

One more piece of info, my MacOS is Sonoma 14.7.6

@mesquitebeanI am having the same issue trying to transfer my .tax2024 file prepared using 2024 desktop version of Turbo Tax on Mac into Turbo Tax 2025 desktop ...