Some files turned corrupt after transferring from old MacBook Air to new MacBook Pro both running macOS Sequoia.

I recently got a new MacBook Pro. I transferred data to the new MacBook Pro through the migration assistant. Data was transferred from Mac (Macbook Air, old Mac) to Mac (Macbook Pro, new Mac). Now the problem is that there are some files that I cannot open on the new Mac, It is not any specific file type, it's happening with different file types. I logged out of my Apple ID from my old Mac and now when I signed back in to retrieve those files, I can't. Those same files are not showing up on my old Mac now. It was fine before the data transfer and before I logged out my Apple ID, but now I can't see those files on my old Mac, and can't open them on my new Mac. If anyone have any idea how I can get those files back on the old Mac or how can I get them to open on the new Mac, please let me know. Thank you!

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