XMP Data available only with Photoshop CS6

Hi,

We are using an image vault to manage our pictures and i made an InDesign JavaScript to retreive images description contained within the XMP datas.

The text entered in the image bank is good in the browser.

When i open the image in Photoshop CS6 (and older), the XMP data shown is good.

When i open the image in others application (Bridge, PSD CC or my InDesign Script), only the old data is showing (prior to the image bank text update).

To make the good XMP data available to all application, i must open the image in CS6, make a "save as" and then the good XMP is showing through all the application. With an image bank of over 30000 images, this is hardly a solution.

This is what the header looks like when exporting the XMP datas)

Header when exporting XMP from PSD CS6 before the save as (showing the old schema)

Header when exporting XMP from PSD CS6 after the save as (the old schema isn't there anymore and "TC_GENERIC" is now showing)

Any pointers to what i should do to make this right?

Thanks