November 5, 2007
Ian Lyons of Computer-Darkroom, has pin-pointed a problem with the latest Mac OS X 10.5, Leopard Apple operating system and finder crashes when navigating photos with the new CoverFlow navigator, where the photos have had the metadata saved to them via Lightroom. The following extract is taken (with permission) from a thread currently running on the Adobe Lightroom User to User forums in which Ian has come up with a workaround to this bug. Hopefully Apple will be able to address this metadata compatibility issue in a future OS release.
If you’re having problems with Leopard not being able to render a thumbnail, previews in CoverFlow, etc etc etc or worse (i.e worse = Finder is crashing not relaunching!) then try the following:
1. Select the image in Bridge or open it into Photoshop
2. Select “File Info” command from the File menu
3. Select the Advanced panel
4. Check for the presence of the metadata nameset http://ns.adobe.com/camera-raw-saved-settings/1.0/ (this is NOT a hypelink, so so don’t click it -see attached screenshot)
5. If above is present it’s likely the cause of the problem.
What do you do next?
You can hope that Apple changes Finder/CoverFlow so that it can handle this particular metadata nameset in JPEG, TIFF and PSD files.
Alternatively, you can delete the nameset using the Delete button in File Info (see screenshot below). The nameset is used to store the Lightroom “Snapshot” data, so deleting it from non Raw files shouldn’t lose you anything.
“I think that part probably does not get written if you check minimize metadata in the export dialog.”
To which Ian replies:
It’s not written at all during file export. The metadata gets written to file when you Save it to file (Cmd+S) or if you have “Automatically write changes into XMP” active, but ONLY if “Include Develop settings in metadata inside JPEG, TIFF, and PSD files” prefernce is also active. You can switch this preference OFF from within the “Catlog Setting” dialog – “Metadata” tab.