Captivate 8: audio does not consistently pause when the slide timeline pauses.

  I have reviewed a lot of the posts about pausing audio and have not found anything that addresses this problem.  The slide has an audio track the should play until a pause that is associated with a smart object used as a button.  The property to stop slide audio when paused is clicked.  The object also has advanced scripts that make visible some objects and pause or resume the slide when variable have specific values.  The intent of the slide was to have the use hear the first part of the audio, think about the content then click the button to see additional information and hear the remaining part of the slide audio.  When I first came across this problem I read about some challenges with advanced actions causing problems with the slide audio not pausing so my first work around was to take the second part of the slide audio and attach it to the button.  This works fine except for the closed captioning text which is associated with the main slide audio - the CC displays before the button is clicked because the slide audio timeline does not pause.  The slide timeline is paused confirmed by objects that are positioned on the timeline after the pause do not appear until the button is clicked.  And just to make life interesting if I copy the slide to a new Captivate project I can get the pause to work.

Thanks for the help!