Can't relink audio file in Final Cut Pro X

OK, when You are helpless, You start trying crazy things and... I found a solution.

I opened both files in TextEdit and found that the header was different. So I copied this three lines of gibberish and pasted it in the new file and .. voila, it worked!

Hi terryb,

the audio files are in WAV format and were originated in ProTools. The original file had a header like this:

RIFFÇP.WAVEJUNK@bextZPro ToolsaaiLR38IGkUk2023-12-3022:14:46Ãø

+4‚†ãÕÎîÄjZe*Nvúfmt (ĪÓminfêœXf;⁄elm1Údata≤Ú-

And the updated like this:

RIFFÇP.WAVEJUNK@bextZPro Toolsaa4PRt5KztUk2024-01-1822:27:16∏L

+4‰ŸìîÎßÄ*«e*Nvúfmt (ĪÓminf∞w‚<VJ⁄elm1Údata≤Ú-

This is the only part I have replaced and as I said, I just saved the file in TextEdit and it works.

Yes, this is what I wrote in the original post.