there's a bug on the video and its annoying since its the last video of the entire course and it wont complete.
The last video of the course is an exercise.
Complete the exercise, submit it and once it has been graded it will show as complete.
That sounds very annoying, but it is not a bug in the video, because it plays without problems till the end. Must be something on your side...
Maybe try a different Browser or clear the cache or download the video...
It won't complete until you have completed and passed the exercise.
Please review the comments left on your submission