Some XMP sidecar files generated by Aperture may contain no metadata when opened in other applications.
This occurs when the IPTC field Urgency is populated with alphabetical characters. Aperture 1.5 does not allow non-numeric characters to be entered into the Urgency field, but projects created in previous versions may have non-numeric characters there. Replace any alphabetical characters in the Urgency field with numeric characters, or simply leave the field empty before exporting XMP sidecar files.
This issue is resolved in Aperture 1.5.1. If theUrgency field contains non-numeric characters, it is not exported to XMP sidecar files. All Aperture 1.5 users are encouraged to update to version 1.5.1 to take advantage of this, and many other enhancements. For more details on what is changed in Aperture 1.5.1, click here.
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