Unable to control Storyline Player button states via trigger when viewing on mobile device (iOS) Aug 03, 2022 By Randall Sauchuck There seems to be an issue with the player on iOS. Like a MAJOR bug I set a trigger to disable the Next button when the slide begins, and another to enable it when the slide ends. This works correctly when viewed on a Desktop browser. However, on a mobile browser the buttons are ALWAYS enabled. If I use restricted Navigation (and apply it to the Next button) then the Next button is disabled until the play head reaches the end of the timeline, where is enables. This is fine for slides that don't require user action, however, this will not work if I want to have the user click several buttons before advancing, for example. Why can't I control the navigation buttons via trigger in mobile Safari/Chrome?