Captivate 9 export of text captions for translation stops after slide 7

Most likely there is some object on slide 7 or 8 that is causing it to fail. 

Look for widgets or objects that may be suspect.  Try hiding slides around that area, say slides 6-8 and see if the publish completes successfully.  If it does, search those slides and try moving objects off into the scrap area so that they are not published.  Perhaps you can identify the issue.