Photos XMP DC tags not showing up

Bonjour Jérôme,
I am fighting with Apple Photos (macOS Monterey 12.6.1) and the export of metadata.
When I export the file as an unmodified file with a side IPTC as XMP file, I can find the Title and the Legend of my photo as typed within Photos in the XMP dc:title and dc:description tags, but these tags do not show up if I open the xmp file with MetaImage (2.2.0).

     <dc:title>Sant'Ivo della Sapienza</dc:title>
     <dc:description>Vue sur le clocher hélicoïdal de Sant’ Ivo alla Sapienza.</dc:description>

I would love to have those visible in MetaImage so they could be copied/pasted to the EXIF Description.

By the way, I was able to share a photo from my flow into a shared album while keeping the description, but I cannot remember how I have done it, because it does not seem possible according to Apple.

Best regards,

Hello Xavier,

MetaImage reads these two tags as XMP:Title and XMP:Description.

MetaImage can do it it with the compare mode. Here is a short tutorial. It works with XMP files.

Maybe you had exported the modified versions of the files from Photos?

Best regards