If you use the add media, you won’t see the video preview unless it adds an embed iframe directly from Youtube.
The image that appears in the upper-left corner of a course on the course viewer page, indicating how many CE Credits the course has, is not displaying properly when a course has a featured image.
Remove the Co-Instructor from the Author in the course editor
If the course has instructors then it should appear as Institution but if the course doesn’t have instructors then it should appear as Instructor.
When the Instructor clicks on this button then the complete button will appear to finish the lesson or pass to the next.
Add a live button to the lesson in the frontend editor with a Date and a time