I also have a constant sync error "during analyzing my online tree" and so I have uninstalled and reinstalled. The sync works fine with 2012. At this point I have tried so many different things that I feel like it is all mixed up. If I unlink the trees when I have the 2012 software open will that unlink the tree in the 2014 also? When I am in 2014 is says my trees are linked but I always get a last sync failed - try again later. Could this be due to my 2012 trees still linking - is there a simple way to transfer this if this is the case. I am afraid of deleting a tree so the back ups just keep piling up and adding to the confusion.