I am having the same problems. Multiple multiple multiple duplicate entries of people, events, facts. I got sick of dealing with that every time, so turned off the automatic sync and decided to just click on it manually. Now trees refuse to sync. This software is just terrible. So FRUSTRATING! Who has time to waste like this, trying desperately to figure out how to fix it? Ancestry needs to clean up this software. It is NOT working for most people. I wish I had read all the negative reviews before purchasing.