Next object fails to appear when published in LMS

I have a Next object that appears after the states of 4 other objects are visited. So, the learner selects each of the 4 objects, in turn, to go to visit specific slides and subsequently returns. Each object's state, changes from Normal to Visisted. Once all 4 objects have been 'visited', the Next object's state changes from Hidden to Normal so that the learner can continue to another slide. 
This works fine in Preview and when I view the project after it is Published. It does not work when it is viewed in the LMS. Very frustrating. Any ideas?

5 Replies