Hi there! Have you tried testing your course in SCORM Cloud to see if you're getting the same results when viewing your course in Microsoft Edge? If the next button is not visible only with the course hosted in your LMS (Totara), but not in the course hosted in SCORM Cloud, I suggest submitting a case with Totara so they can help with this LMS related issue.
If this happens in both environments, would you mind sharing a link to your course so we can take a closer look? If you prefer to share this privately, you can do so using this form and we'll work with you directly to troubleshoot the issue.
