Unknown Error while writing metadata to this photo

Hi,

I experienced the same but I clicked mistakenly on "import settings from disk" and now ALL my edits and rankings are gone....

Do you have any idea how I can retrive it all?

Regards,

AB

Something changed in Mac OS 12.3.1, and many people are finding they need to grant LR Full Disk Access. See these instructions:
https://community.adobe.com/t5/lightroom-classic-discussions/lightroom-catalog-cannot-be-used-because-the-parent-folder-does-not-allow-files-to-be-created-within/m-p/12883223#M270829

Hi there,

Thanks for reaching out. We are sorry for the trouble. We are here to help.

Could you please confirm the version of Lightroom Classic from Help > About Lightroom Classic? Where is the catalog stored on an internal drive or an external drive? Have you tried any troubleshooting steps?

When you launch Lightroom or Adobe apps on macOS Catalina and above, you are prompted to allow permissions by the macOS.

You can ensure Lightroom has the permissions needed on the Mac by following the steps suggested below and here with a video (https://bityl.co/BsB1) or follow the steps below:

1.  Go to the System Preferences for your Mac, then Security and Privacy, then select the Privacy tab.  
2. Then select Accessibility from the list to the left & check if Lightroom is added to the list with a checkmark in front of it.  
3. If Lightroom is not a part of the list, please add it by unlocking the window first using the lock at the bottom left, then clicking the + icon & navigating to the Applications folder.  
4. Also, grant permissions to Lightroom under Full disk access found in the same list as Accessibility.
   
5. Once done, lock the padlock to save the changes.
   
6. Search for Disk Utility from Finder's spotlight search or magnifying glass.
7. Run 'First Aid' diagnostic on the external drive. Check this to learn more: https://support.apple.com/en-us/HT210898
8. Restart the computer.

Let us know if this helps,

Thanks!

Sameer K