Once again another stuck syncing thread. I think this is something to do with the deleted photo metadata bug I've read about.
LR is stuck syncing one photo, but when you click the cloud icon and then view to see whats syncing no photos come up. LR on the web browser doesn't show any syncing photos or sync issue photos, and neither does LR on my iphone.
I can't seem to find a recent answer on how to fix this? Any help?
It's not clear from your posts, but have you opened the Deleted album in either the desktop or web apps to see if you can see one of the deleted images still showing the blue circle "syncing" icon? If so, permanently deleting that image usually resolves the problem.
If there's no image in Deleted still trying to sync, then your problem is likely a different one.