Hi I am still having this issue. Recently it increased. If i am editing a doc for continuously 1 hour, i will get around 10 -12 duplicate notes which is very annoying. When a new duplicate is getting created, the edit window blinks or flickers and the added text disappear. to get the lost text, i have to take the new duplicate. I am using browser version. I tried on both chrome and firefox. My OS is ubuntu. Please try to push a fix for this. Now adays my evernote experience is pathetic. Thanks,