Hi, I tried an alternative approach by syncing with the OSX app from my iPhone and the latest version of the software, but the problem still exists. So it looks like the bug is still in BitTorrent Sync v1.3.40 on iOS 7.1.1 - tbh, I'm surprised not more people are reporting this, it makes the iPhone Camera Roll backup feature useless, as it stalls during the sync and only backs up a certain number of photos.