Lightroom Classic Sync Problems

Report · Feb 17, 2020

I'm have been having issues with my Desktop Lightroom Classic (Mac) and Lightroom Mobile Sync (IOS). I had an image stuck in sync for a few days and it wouldn't go away. I had imported new photos into my Desktop Lightroom and they wouldn't show on my Mobile after multiple trys.

I confirmed both versions were up to date; 9.2 for Desktop Lightroom Classic [Raw is not up to date, not sure if this would cause an issue as uploaded photos were shot in RAW], 5.2.0 for Lightroom Mobile.

I checked under Prefrences>Lightroom Sync, Sync Activity and it was showing at '(0 Uploading, 0 Downloading, 0 Pending)'

After looking at few forums I completed 'Rebuild Sync Data.' As of a few hours ago I had 2,619 Syncing Photos, and I still have 2,619 - no progress made. My total library is north of 12,000, but wouldn't think that would slow things down too much.

I should also mention that under Prefrences>Lightroom Sync, Sync activity is still showing at '(0 Uploading, 0 Downloading, 0 Pending)'

Does anyone have any ideas as to what I might be missing or steps to take?

Report · Feb 17, 2020

Ashley: In your first issue above you mention Sync issues on one particular image; sometimes it has been reported here that a 'faulty' or corrupted or even missing image can stop the Sync.

Can you find and remove that one image from the process and retry?

Also are you Syncing from an external storage drive?

Report · Feb 26, 2020

I am in the same situation.

I have tried several solutions below but have failed.

1. Delete all cache files (rm -rf ~/Library/Caches/Adobe/Lightroom)

2. Delete sync file (rm "Lightroom Catalog Sync.lrdata")

3. Delete preference file (rm ~/Library/Preferences/com.adobe.LightroomClassicCC7.plist)

Tony_see: Do you know how to find a 'faulty' file?

I also feel that there is a problem with a some file. However, I have no idea which file is the problem.

Report · Feb 29, 2020

I am posting a process to Sync to a new Catalog.

This may offer you an option, but will not suit all scenarios I suppose.

Please read this before actioning but it might help:

1. Launch Lightroom Classic.

2. Chose New Catalog from File menu. Give it name that stands out.
Lightroom will relaunch into this new catalog

3. When new catalog reopens go to the Sync control at top left of the Lightroom UI

4. The text alongside 'Sync with Lightroom' will be 'Start' (screenshot 1 below). Press 'Start'

5. A warning dialog will appear. This warning indicates that you already have a catalog synced with the cloud (in your case the one you don't want to be synced).

6. Click on the button 'Yes, sync with this catalog instead' (screenshot 2 below)

7. Lightroom will take a few moments to begin syncing to your new (temporary) catalog

8. Pause the sync as per your original screenshot, then select your original catalog from File > Open Recent > Name of your working catalog

9. Find the new temporary catalog you created in step 2 above and trash it.

Screenshot 1

Screenshot 2