Web Object is a Survey Monkey survey. Anyway to ensure they complete the survey before they click next?

So, Tom, I am having one issue now.  My SME decided to enter the code  (in the tutorial the submit button doesn't really do anything), The next button activated, but she decided to press Prev button and then come back her code is sitting in the text entry field but next is grayed out and no matter if she types it in again or clicks the next button won't activate.  i tried both Reset to Initial state and Resumed saved state to see the reaction and I can't get either to work,  Can you help me

I put the three slides in a separate file here.  the code is the word:  health

The issue also happens if they select PREV button on the exit slide module and go back to the text entry slide, 

I would like if they had already entered the code that the next button should stay as normal.

Hoping you can help, we were doing well until this test and it is due next week...