Embed Code Not Saving

I'm trying to alter the embed code so autoplay=1 on a youtube video, but the embed code will not save when I make the change. What am I doing wrong?

Sticky Posts
Welcome to the Zoho Show Community Forums page!
Hello everyone, The Zoho Show community is a place for you to discuss and share anything and everything related to Zoho Show Presentations, our online presentation software. It includes users from all over the globe and all walks of life. Our community helps answer your Zoho Show questions with responses from other knowledgeable community members to give you the best experience creating and designing exciting presentations. Along the way, you'll meet recognized experts from our software team and

Topic Participants