Unable to remove the play button from a Storyline block on Rise 360

Hi Arun,

Thanks for reaching out! A play button on your Storyline Block course appears if there's an audio or video on the first slide. Your learners will need to click the play button to start viewing your Storyline course, and the media will play as expected. 

If you don't want to have a play button on your Storyline block, you can add a slide at the start of your Storyline course that doesn't contain any audio/video files. I hope this helps!