I have never lost note content until today, and I've been using Evernote for years. Last night I was on my iPad tapping in a bunch of new ideas. As usual I probably stopped, quit my app, and went to sleep. This morning when I checked that note ALL MY NEW NOTES WERE GONE. The history in the online sync shows the last time I updated this note was yesterday morning, not last night. This is sort of like a computer crashing on unsaved data - I have to start all over again. None of my other devices show anything different. Last night's work: GONE.
My best guess is that for some reason my changes to the note did not sync last night, and were mysteriously overwritten by the server's version when it did sync. I just don't know why, but I wonder if Evernote crashed or something and I did not know it. I saw no indication of a problem. When I "quit" the app maybe my changes were lost at that time because the changes were not being saved as they should have been? I have used Evernote on all the same devices for years - I have TONS of notes - and this has NEVER happened before.
Conflicts occur if I switch devices and edit the same note on a different device and then both sync. That is normal and I know how to find my data and reconcile. Occasionally I'll find a note that has all the new content aggregated to all the old content. That is not common but I know to look for it and and it's fairly easy to fix.
But THIS is unusual. All my work is completely gone - no history, nothing.
I'm not asking for help here, because I don't think anybody can help. I have to start over. Just reporting it...