Captivate 5 skipping certificate widget

Okay - I am going a little crazy here.  I have a simple multiple choice and true/false quiz -- only four questions. At the end of the quiz, the review quiz results slide is shown. The next step is to complete the certificate widget.  It worked great.  Then, I added a slide after the certificate widget and it still worked great.  After adding one more slide to the end, it competely skips the widget and goes to the next-to-last slide.  I remember having this problem before but can't remember how I fixed it.  If I take the last slide out, it works again. But, every  time I add it, it skips the certificate.  All settings are exactly the same as a similar quiz I had already created/published -- that quiz works fine.  Help!!