I have the same issue... file sync seems to have stopped... Its just shows the number of syncing photos but doesn't sync those images and is just stuck. The collection name/folder will appear on my mobile device but no images. Desktop versions appears to be stuck. Tried logging out/in restarting etc. nothing is working. Please help as I am sooo busy at the moment, just when I need this to work.
Could you both try to remove the sync.lrdata file and restart Lr Desktop. This would restart/refresh the sync (metadata only).
Removing the Sync.lrdata might fix whatever the issue is. Or, at least, might trigger it to occur again. So remove the Sync.lrdata, start Lr Desktop, and then wait until it either syncs or gets stuck again and create at this point a Lr Desktop diagnostic log which can hopefully provide some clues.
You can find the sync.lrdata file here:
On Mac it's at /Users/<user>/Library/Caches/Adobe/Lightroom/Sync Data/Sync.lrdata
On Win it would be at C:\Users\<user>\AppData\Local\Adobe\Lightroom\Caches\Sync Data\Sync.lrdata
If this won't help just send me the LR Desktop diagnostig log - best as a private message with a downloadable dropbox link.
You can trigger the log via LR Desktop preferences -> Lightroom Mobile and when you hold down the alt key you will notice a generate diagnostic log button
Thank you Guido, This seems to have sorted it for now. Very much appreciated.
i did that and now Lightroom will no longer open!
I put it back in and now Lightroom does open but still shows syncing 22 photos