I have the same problem since 27th july. Whatever notes i edited or i saved new data, all lost. AND NO, I HAVENT USED MY MONTHLY LIMIT. I want to search this forum to find whether other people have a similar problem. Turned out they have. Is there any solution by EN till now?
I mostly edit my notes on Chrome
Update- I switched to older version of EN in chrome. Now data is getting saved like i wanted but it is making duplicate copy everytime i am editing.