JAWS Accessibility - Adding Forums Attachment

We are using JAWS 18.0 and Internet Explore 11.  When adding an attachment to a post in forums, the cursor gets stuck at the "add attachment" button.  The user is unable to move out of the box or add an attachment.  The problem can be fixed if the user refreshes the page. 

Steps to Recreate:
-  In a forum either make a new post (Start a conversation) or reply to an existing message
-  On the page where you can create your new post, use the "Add Attachments" button
-  The cursor will get stuck here, and the user will be unable to move out of the box or add an attachment