Attachment problems

[hcuddihy 0]

I recently started using Evernote Premium.  I noticed that xlsx (excel) attachments are blank.  Quickview brings them up until you close that view.  But the large file area is blank.  The attachment appears for a moment when first attached then vanishes leaving blank space.  If I resize the window even a millimeter the file appears and is usable.  I am on a mac desktop with latest update for osx and evernote.  I believe this is a bug but I don't see a formal bug report area on any web site.