I am new to LR and am having issues with my pictures syncing. I have just over 500 files that were to sync. After around 2200 the process appeared to stop and for 2 days no progress was made. So, I shut down LR. This allowed some of the files to be completely synced. However, I still have almost 2000 that will not sync. I have Sync Issues showing on LR web - see screen shot. Any assistance would be appreciated.