I've got the same problem here on my iPad, iOS8.4, newest EN-version, not just with a few files, it's actually spreading out and affecting a lot of my pdfs. It starts to reach a point for me where Evernote becomes a serious problem for me as I rely on it... I've tried to completely erase the app from the iPad, re-installing, re-syncing for offline use, that made matters even much worse. I'm a bit at loss right now, I can't really switch from Evernote, but with these problems I can't really work with it either ... If anyone has an idea: please come out with it!!!!