I am using Adobe Acrobat XI and use the Shared Review feature to send out to my SMEs. When someone attached a file in the pdf and returns the file, I am unable to open the attachments. As you can see above in the Comments List, there appears to be a lock icon on the one comment. Double-clicking on the paperclip in the image on the left goes nowhere. We need resolution to this as soon as possible. We have been using the Shared Review feature for many years and now we have this issue. HELP!!