I just started using Evernote a few months ago. Now I have hundreds of notes and many Notebooks and Stacks. I've invested many hours setting it up over that time. But in the past week or so I have noticed that none of my notes are there when ever I open the app. I use it only on the Mac, not on any devices, it is not an issue with internet connectivity as some have suggested here. All the Note titles appear but none of the content. I am now screwed. If I ever get access to my notes again I will be removing them all from Evernote and going through the whole set up again on a new Notes platform. Had I known Evernote was prone to losing my notes I would never have attempted to use it. My suggestion to the Evernote development team is as others have suggested here on this thread - don't try to add all the bells and whistles until you have the very basic functionality sorted out and working. What good is a note keeping program that doesn't keep my notes?