The recent upgrade of the video lectures to the native HTML5 format includes the functionality to automatically play multi-part videos consecutively. However, this means that the second and subsequent videos in a multi-part series are not recorded in the video progress bars or in the Video List.
To get around this, you can always go back to the Topic page and manually start each part of a multi-part video series.
Please note that the progress bar and video list reference are for your information only. They are not required to be listed as completed in order for the student to continue with the material. Similarly, the Chapter Checklist is for information purposes only and does not affect progress in the course in any way.