Hint button in a screen cast

I have inserted a screencast (for a computer simulation) in "try mode".  Instead of showing the hint captions when hovered, I created a HINT button and show the hint caption when the user clicks the button  My problem is that if the user clicks hint and then still enters the wrong information in the text entry box, the hint caption doesn't show again when they click on it.  Is there a way that the user can get the hint more than once? 

The other change I made to the slide is that the interaction is submitted when the control loses focus instead of when the user clicks "submit".  That makes the interaction more realistic to the user.  Could that be why the hint won't show more than once?  (The base layer is set to "automatically decide" when revisiting, but I tried it in "reset to inital state" and it didn't change the behavior.)