Change state of player next button to hidden until timeline finishes error. Nov 17, 2014 By Andrew Hinkle Hi Articulate Community, I have a presentation that I'm wanting to lockdown without creating custom advance buttons inside the slide. I have used the player Previous and Next functions and set the following triggers: This works smoothly as these two triggers are in every slide. When the user spam clicks the next button at the end of the slide, it advances multiple slides. I have tried creating a variable to prevent that: 'FinishedTimeline' default is set to false. Player Triggers: Lightbox Slide: What am I doing wrong here? The "Error" Lightbox slide never appears and the user is able to spam click past multiple slides. Thanks!