Button on timeline not displaying after a long delay, like it is timing out.
I have a next button that is delayed to appear at a set moment in the timeline and it is not showing constituently, especially in Safari on the iPad.
For example, I have an 8 minute video and I have a next button, to advance to the next slide, on the timeline set to display at 7 minutes. The Pause point on the timeline is set at 8 minutes. This button delay is a requirement of the client to make sure users are not just skipping over the video. I have not had the timeline issue with a standard 6 second delay on text based slides.
The video is a web object placed on the slide, not an interaction type, so that the YouTube player does not show related videos and to take advantage of the other YouTube features.
The slide plays the video fine, everything seems fine and works 9 out of 10 times, but I'm getting feedback that users are getting stuck as the next button does not load.
Any ideas of how to make this work? Is it timing out since it is delayed for 7mins?
Here is a screen grab of the front and end of the timeline.

