I am using LR 4.1 on my desktop PC and on my iPhone v 6.1.0
I have a situation where constantly there appear to be 23 photos wanting to sync.
Several months ago I was able to identify them by using the "view" button. Eventually I decided I could live without them so deleted them from that location within LR on my desktop. However, LR is still trying to sync them though they are not now visable from the "view" button. It isn't a major issue, just annoying particularly when uploading a batch of new images.