Hello, I've been running into an issue with Storyline 3 courses in iOS. They work fine on android and in Chrome, but in iOS they are launching a blank video player. When I click on a course with an embedded video in the course, a blank black video player opens up over the course. Sometimes I can close it and get back to the course, after which it will work. But other times the blank video player won't close and will just be stuck. Does anyone know what could be causing this?