Metadata on video files missing when downloaded to Windows 10 PC via iCloud.

This has been functioning 100% for years until THE DAY I updated my iPhone 15 Pro Max to iOS18. Video files taken BEFORE the update still download complete with metadata. So the problem must be iOS18 has changed the file format itself???

I have 2 other devices updated to iOS18 and they exhibit the same problem. So it's not iPhone 15 related.

Metadata is present and correct on PHOTOS downloaded to the PC no problem.

NOTE: The metadata is still present on the file info on the PHONE!

I have contacted Apple about this, but got nowhere. My only hope is someone had the same problem and fixed it with ease and thought nothing of it.

CLUES:

1) if I change the camera format from my usual Most Compatible to High Efficiency, the metadata does download with the video.

2) if I convert the downloaded MOV file to MP4, the metadata re-appears.

The downside to this is, when I download my holiday videos, there's no way of putting them in sequence as the Date Aquired or Taken fields are blank.

Anyone put me out of my misery?

Michael