Adobe Lightroom CC desktop export bug, duplicate photos, unending export, etc

Adobe Lightroom CC using desktop install 3.2. When exporting more than 10 photos at a time, multiple duplicate photos are created at random, causing the export to run for an extended period of time, and never completing. This is huge bug that has rendered the program useless. Previously I was able to export without this issue. Using Macbook Pro. I shut down the computer and changed folders without any luck. Please help.