I created a fireworks slide (that still needs some tweeking in timing) in PowerPoint using the YouTube video suggested in these discussions. Then I imported it into Storyline 2. Only part of it works - the objects enter the way they're supposed to, but the firework is supposed to dissolve out like a firework and instead just exits. I thought all aspects of a PowerPoint slide would transfer to Storyline 2. What am I doing wrong, please?