Lightroom unresponsive and disconnected from photo catalogue after using Lightroom duplicate application

Hi ​@gikglhlh,

Sorry for the delayed response. Please don’t uninstall/reinstall Lightroom Classic or make additional changes to the catalog yet. Your description caught my attention because there was a data-loss issue with the new Duplicates workflow in Lightroom Classic 15.4. Under specific conditions, using Delete Rejected Photos while in Duplicates view could delete more copies than intended from both the catalog and disk. This was addressed with critical fixes in Lightroom Classic 15.4.1.
 

Since you’re reporting something similar while working with duplicates, I’d like to establish whether you followed that same workflow. Could you please confirm exactly how you removed the duplicates? Specifically, did you:

• Duplicates view > mark duplicate photos as Rejected > Photo > Delete Rejected Photos > Delete from Disk

• Or did you use a different command/button?

Since you mentioned that your photos are still physically present on the hard drive, that’s encouraging. Please click the "!" icon on one of the missing thumbnails and share a screenshot showing the location Lightroom expects for that file versus where it currently exists on disk.

If the files are indeed still present, we may only need to reconnect Lightroom Classic to their current location rather than reinstall anything. Please don’t re-import, synchronize folders, or delete anything else until we establish what happened.

Best,
Anshul Saini

If I uninstall then reinstall Lightroom classic will that clear the adobe duplicate fault and return Lightroom to its usual and workable state?