HVS

I've never had any trouble attaching files to notes in the Mac app before, but today when I tried to drag a file to a note I got an error message saying the file could not be attached. I also tried to attach it to the note using the blue + button in the Evernote app, with the same result. I tried restarting the app, but got the same result. I was able to attach the files using the web app, and view them in the Mac app, but I hardly ever use the web app. Please provide a fix for this asap.