YouTube page shows up gray and eventually loads.

Version: Adobe Captivate 8.

Problem: After publishing a responsive design the page with the YouTube video display as gray. Nothing is on it. Eventually the page will display and the YouTube video will  play.

It runs fine when I play as Project.

How do I resolve this?

How I incorporated YouTube in Captivate 8

• Interactions
• Learning Interactions
• Selected YouTube interaction
• Clicked Insert
• Pasted the YouTube URL in the Video URL
• Clicked Auto Play
• Clicked OKAY