Need Suggestion: Video on the timeline and timeline itself acting out of sync of each other

Thanks Leslie for sending this. But this is exactly the same I have done.

With this, you can make video inactive for clicking. And I made by video, don't play automatically, so some users were confused where to click, on seekbar, they keep on clicking on the video, and Then I further added instructions as first frame of video, but even then got response from some leaners that it is bit confusing. 

So it appears for now, this is the best solution, maybe not IDEAL.

I really wonder why video runs its own, without being synced to seekbar.