Embedded presentation no longer auto-starting loop

Embedded presentation no longer auto-starting loop

I have a looped presentation embedded on my site which until recently would start automatically when the iframe loaded. Within the last several days, the slideshow no longer starts automatically - the user must right-click and select "next" for the presentation to display. Is this related to the recent loop fix? Is there a means of returning the auto-start function to the embedded presentation?

Many thanks,

Emerson