NAS and Metadata errors

[pjb2615]

Lightroom Version Number

LrC V10.4

Operating System

1. Windows 10

Hi

I recently moved all my photos to a NAS, and I now import direct to the NAS.

When I edit SOME (possibly most) of the photos, I end up with a little up arrow on the thumbnail in the filmstrip. Clicking the arrow I get the following message. I cannot figure out what the issue is. The only way around seems to be to copy the photos to my local drive, edit them there, export to my website, then (for space reasons) copy them back to the NAS.

Clicking "Overwrite Settings" only fixes the problem for a short period, the the warning arrow eventually returns. Selecting "import settings" seems to get rid of the arrow, but can also lose the edits!

Would welcome suggests on how I could solve this problem.

thanks

Peter

 

[pjb2615]

As an afterthought, prior to running out of space and moving to the NAS, the lightroom photos were in my dropbox folder for several years, without any problems.

 

[clee01l]

That icon on the thumbnail is a warning indicator. The message that you see is a warning message not an error message. There are modified data tags (MDTs) that the filesystem places in the file header to indicate the last time the file was changed (modified) Lightroom keeps track of these and if the MDT in the file is later than the MDT stored in the catalog file, you will get this warning message. Moving a file from one disk drive to another will generate such a message. A system backup can be another generator of this MDT as backup software also monitor the MDT and change it when ever the Backup software makes a new backup.

Most likely nothing is wrong. There is no reason in Lightroom that you would ever use the metadata in the original image file. On Export, Lightroom will create a derivative image file using the Lightroom adjusted edits on the original image data and the metadata that id stored in the catalog. If you are comfortable that the metadata stored in the catalog is correct, you should not care what metadata is stored in the original file and you can ignore this common warning message.

 

[Johan Elzenga]

Do you have sidecar files? IIRC there is an issue with images on a NAS that the sidecar file extension (.xmp) can be case sensitive. Lightroom expects lowercase, so if the extension is in uppercase it may not read it and so it may think the sidecar has been changed.

 

[pjb2615]

That icon on the thumbnail is a warning indicator. The message that you see is a warning message not an error message. There are modified data tags (MDTs) that the filesystem places in the file header to indicate the last time the file was changed (modified) Lightroom keeps track of these and if the MDT in the file is later than the MDT stored in the catalog file, you will get this warning message. Moving a file from one disk drive to another will generate such a message. A system backup can be another generator of this MDT as backup software also monitor the MDT and change it when ever the Backup software makes a new backup.

Most likely nothing is wrong. There is no reason in Lightroom that you would ever use the metadata in the original image file. On Export, Lightroom will create a derivative image file using the Lightroom adjusted edits on the original image data and the metadata that id stored in the catalog. If you are comfortable that the metadata stored in the catalog is correct, you should not care what metadata is stored in the original file and you can ignore this common warning message.

Thanks - that is comforting to know, but it still perplexes me that the problem is only on the NAS. I am one of these people that gets a little obsessed when things aren't quite right and I don't know why! But I will stick with the NAS for now and see how it all goes.

 

[pjb2615]

Do you have sidecar files? IIRC there is an issue with images on a NAS that the sidecar file extension (.xmp) can be case sensitive. Lightroom expects lowercase, so if the extension is in uppercase it may not read it and so it may think the sidecar has been changed.

THanks for your response. All the .xmp extensions are in lower case. The file names themselves have uppercase, but that's not new. The problem is only on the NAS drive, so is a bit strange.

 

[clee01l]

Thanks - that is comforting to know, but it still perplexes me that the problem is only on the NAS. I am one of these people that gets a little obsessed when things aren't quite right and I don't know why! But I will stick with the NAS for now and see how it all goes.

Only on the NAS or only noticed after you moved files to the NAS? I have probably thousands of these files that Lightroom sat the Metadata in the catalog does not match the original file. I do not wrote metadata back to the file as there is no benefit from doing so.

Years ago when I first received this warning message, I was alarmed. Most concerned because the original file supposedly had not been touched (except by my system backup app.). I eventually realized that it did not matter. As long as the Metadata in the catalog was correct, all of my exports would have correct metadata.

This is such an unimportant factor in Lightroom processing that you are never appraised of the issue if you use Lightroom (cloudy) instead of Lightroom Classic.


Sent from my iPad using Tapatalk

 

[pjb2615]

Only on the NAS or only noticed after you moved files to the NAS? I have probably thousands of these files that Lightroom sat the Metadata in the catalog does not match the original file. I do not wrote metadata back to the file as there is no benefit from doing so.

Years ago when I first received this warning message, I was alarmed. Most concerned because the original file supposedly had not been touched (except by my system backup app.). I eventually realized that it did not matter. As long as the Metadata in the catalog was correct, all of my exports would have correct metadata.

This is such an unimportant factor in Lightroom processing that you are never appraised of the issue if you use Lightroom (cloudy) instead of Lightroom Classic.


Sent from my iPad using Tapatalk

Again thanks very much for taking the time to respond to my post. I moved all my photos to NAS, but the ones I'm editing at the moment and which are generating the warning are ones I've recently imported directly from the camera.

But I'll accept your advice and learn to ignore the warnings.

 

[DCBolton]

FYI, I import all of my images to a NAS and mostly edit them from there as well. I essentially never see this message. It only pops up in rare circumstances when an image has been edited or manipulated externally.

Sent from my SM-N960U using Tapatalk

 

[pjb2615]

FYI, I import all of my images to a NAS and mostly edit them from there as well. I essentially never see this message. It only pops up in rare circumstances when an image has been edited or manipulated externally.

Sent from my SM-N960U using Tapatalk

thanks, I do find it odd what's happening with the photos. I've gone back to editing on the NAS. While I do use say Topaz Gigapixel on heavily cropped photos, the problem does also occur on photos on many of the raw files as well, but don't get the issue when editing on my c: drive. I have an automatic backup from the NAS to my dropbox as extra safety and thought that the backup software may have been doing something, so I turned the backup off, but it didn't make a difference.