Enabling Next Button After the Slide has been visited

Hi everyone, 

Thank you for taking the time to help me! The articulate team solved the issue. The problem was I lacked some variables. The resumed state was not the issue. I needed the following triggers on my main slide: 

1. Add three T/F variables named "var_anatomy, var_advantages, var_limitations" (or any variables name you prefer) and set the value to FALSE.

2. On the base layer of Slide 3.27, add this trigger:

Change state of the Next Button to HIDDEN When the timeline starts on this slide IF var_anatomy = FALSE AND var_advantages = FALSE AND var_limitations = FALSE

3. On each slide layer, change the value of each variable to TRUE.

Ex. On slide layer Anatomy, add this trigger

Adjust var_anatomy = TRUE
When the timeline starts on this slide

Same with the other two slide layers, but use the other two remaining variables

4. On EACH slide layer again, add the trigger to change the state of the Next Button to Normal

Change state of Next Button to Normal
When the timeline starts on this layer
IF var_anatomy = TRUE
AND var_advantages = TRUE
AND var_limitations = TRUE