@dnoctor8117 – My immediate thought is to move the action that turns captions on to an event on the audio file at 0:00. You would need a variable to indicate that the video has already played once, then an action to turn on captions IF the video hasn’t been played once.
Here’s a sample – The order of actions in the group is really important – You want the run JS as the FIRST action, otherwise the captions will play by default every time.
The other caveat is that if the learner scrubs back to the beginning before finishing, the captions will turn on.
I also included my full custom caption button just in case you want it, but it works fine with the default player (and probably any standard skin) with captions added.