I am on Ubuntu, using Nixnnote 2 as a client for Evernote. I have the same behaviour. Sometimes, when I save something, it gets duplicated. The duplicate has no content, just note's title and tags. It ALWAYS happens when I am on chrome in my (Zimbra) E-Mail client and open a JIRA link in new tab, that I save later as a simple note. Duplicate each and every time. My guess is, the problem lies in web clipper or it's API communication with the server.