Hello Kym! Have you tried testing your course in Scorm Cloud?
You can test your published course at SCORM Cloud and compare the results with your LMS. This will give us a hint if the issue is browser-related or something with your LMS.
Your LMS provider may request a debug log to help identify the problem. Learn how to generate a debug log for Rise 360 content. If you’d like to know more about the debug log, check out The Secret to LMS Debugging, which includes a demo video and some helpful information.
If your course doesn’t play correctly at SCORM Cloud either, you may send us your project file for review by opening a support case here.. Our engineers will be more than happy to help!