Sometimes (most of the time) when I export files via lightroom CC it creates duplicates of most of the files; sometimes one duplicate, sometimes 6 or 7. Sometimes I have to just stop the export and start the whole process all over again (at which point it may or may not create duplicates again). It bogs down the computer and wastes tons of time deleting the duplicates. I've noticed the same problem mentioned before by other users with no resolution. Has a fix been found yet?