lnewnam

I am starting to try to use Evernote heavily for meeting preparation. I'd like to include all of the documents I am preparing for the presentation in Evernote. However, when I right-click on the attachment in Evernote and set it to "View as Attachment", sometimes it will revert to being displayed inline when I open Evernote the next time. It doesn't seem to be for all attachments, and I can't figure out what I do to make this happen. Is there any setting to force all attachments to always display as attachments instead of inline? Without it working as expected Evernote becomes less usable for me. I am on Evernote for Mac, 5.6.2; on Yosemite.