title: Missing text when converting docx to pdf with office-interop
body: <p>I have issue that when converting word DOCX files with word-interop to PDF it happends ocassionally that file does not convert well - some part of text is missing.</p>
  
  <p>In my current situation there is missing one text bubble with two lines of text.</p>
  
  <p>I have created a mini test application that converts test.docx to pdf and I see that problem appears on two machines "Windows Server 2008 R2 Standard" with "Office 2010". </p>
  
  <p>Edit: On "Windows 7 Professional" with "Office 2013" : problem is present on two PC's, and everything works OK on one PC (mine workstation).</p>
  
  <p>I'm looking for some leads where to look for solving this problem.</p>
  
  <p>Edit: Here is a image to show what do I mean by "missing one text bubble with two lines of text". 
  Left: original document in word. 
  Middle: Interop conversion output. 
  Right: manually saved DocX to PDF in Word
  <img src="https://i.stack.imgur.com/7kch8.png" alt="Left: original in word. Middle: Interop conversion output. Right: manually saved DocX to PDF in Word"></p>
  
  <p>To see enlarged version: <a href="https://i.stack.imgur.com/7kch8.png" rel="nofollow noreferrer">http://i.stack.imgur.com/7kch8.png</a></p>