Theres been at least one thing that 2023 needed to be updated before transferring clients into 2024 or carryovers didnt flow over (SCorp basis was one), that could be another one.

Do you have a client that you havent worked on that you could delete in 2024, go back and update 2023 then re-transfer and see if anything changes?

Yes, I've done all updates in both 2023 and 2024. We had the same issue with S Corp basis but was able to get that fixed.

Here is what it looks like in 2023 and what it looks like when transferred over to the 2024 software.