I just created 3 notes and dragged several attachments into them w/out issue. For the next, 2 notes I created, drag-and-drop would not work and I was seeing an error in Evernote. When I tail the electron.log file and try to drag-and-drop these attachments again, I see error logs stating "no such file or directory". But when I use the Insert Attachment option, I have no issues attaching the same files from the same locations.