Hi, Jennifer.
Thank you for reaching out!
Do you have audio or video on the first slide of your Storyline project? This article will explain why you see this behavior on modern browsers.
One option to avoid the Play button is to insert a blank slide as your first slide and add a trigger to jump to the next slide when the timeline starts.
Keep in mind that this will also be browser-dependent, and while it might show the slide without the Play button, it might still require the user to click on the screen to hear the audio.
Yes, I have a video on the first slide, thank you for the quick response. I have added a cover slide with a play button as a fix.
