YouTube Widget will not work in my Captivate 9 project.

I am using Captivate 9 on a Mac and adding a YouTube video using the YouTube widget in Interactions.
When I publish my project the video is not there.When I go back to the project and check the video URL "https" has been added to the end of the URL. Deleting "https" does not work as it keeps on reappearing.

Any suggestions please?