Opening PDFs in iPad app removes them from Endnote library

Hi there,

Yesterday I opened up the updated iPad app after having not used it for some time and downloaded and highlighted some text in a PDF attached to one of the references. Today I opened up Endnote on my desktop and saw that the attached PDF had been deleted. If this is the result of downloading and editing the PDF on the iPad app, this would seem to be a pretty fatal flaw for the iOS app… Has anybody else had a similar experience?