I have watched the last video of the course multiple times now, but still the blue tick mark for completion is not there. I have also rated the course as well but it still shows incomplete video.

Hello Ashok Singh Battan, Have you tried to check video lesson as completed by yourself? You can do this manually (by yourself) by clicking on the checkbox next to the assignment/video lesson's name. If you still have difficulties, please reach us. Best regards, The 365 Team