P: Save Metadata To File doesn't change metadata status, Read Metadata From File doesn't always work

*Irma_VG7 , @TomM I have been trying this and have found a problem, but before I go further with it, can you tell me what Import Build Previews setting you are using?

Thank you for your thorough testing and detailed reply. So, for the time being it might be best to work around it...

I can't replicate exactly what you're describing, but I am beginning to think you've tripped over something here.

In my case, there's no indication of a problem, but LrC does not appear to be writing the cropping info to the file consistently when that's the only change that's been made.

With "Include Develop settings in metadata inside JPEG, TIFF, PNG, and PSD files" and "Automatically write changes to XMP" checked, my steps to reproduce were - 

1. Import file.
2. Press R to access the crop tool and change only the horizontal and/or vertical crop.
3. Go back to Library and remove the image from LrC.
4. Re-import the image to LrC.
5. Image comes back without the cropping changes applied in step 2.

Variations -

• It appears if I make any other change along with the crop in step 2 - change the angle, up the color temp by 1, etc. - when the image is re-imported in step 5, the cropping changes are there.
• If I explicitly save the metadata using the menu or Ctrl+S in between step 2 and 3, when the image is re-imported in step 5, the cropping changes are there.
• Behavior is similar with files already in LrC that have a crop applied to them.  If I reset the crop without changing anything else, remove the image from LrC, and re-import, it comes in with the original crop applied

I tested with a number of jpg & png files.

A new catalog made no difference.

Resetting preferences made no difference.

We'll have to wait and see if anybody else chimes in here, but something appears to be misbehaving.

Apparently the problem occurs, if the angle is provided manually. In this case there is only information about the cropping and the saving fails.

When using "Auto" instead, there are both symbols, "Photo has been cropped" and "Photo has Develop adjustments" and the saving just works  fine.

It seems that nothing happens, i. e. after the confirmation that the metadata really should be saved, the confirmation window closes and the down arrow showing that the meta data has changed, is remaining.

What happens if you select the file(s) and press Ctrl+S (keyboard shortcut to save metadata to the file)?

Thank you for your immediate reply.

Yes, I am using the same versions (LRC 10 and Win10). 

The steps have been: import, develop, change angle, crop, and after some tries, say done. I came upon two photos in my catalogue with this problem.

Now, I repeated the process with another picture and everything worked fine. There is a difference, though: The problematic photos show only the cropped sign in the lower right corner. The newer one also has the marker for the development adjustments. Maybe that's the reason behind this?

Seems to be working fine here in LrC 10.0/Win10.

- What version of LrC & OS are you using?

- Can you be more specific with what you mean by "consists solely of a horizontal adjustment"?  What are the exact steps you're taking?

When the development of a photo consists solely of a horizontal adjustment the change can not be written to the metadata of a JPG.  The metadata status remains "has been changed". I guess that behaviour is not as it is supposed to be?