Next button is not getting enabled in a Restricted navigation course when revisiting the page

Hi Team,

Today I developed a course in Storyline 360 - its works differently.

1. There is a video page. I created a variable 'videoCompleted' and its default value is false.  After completing the video, I used the 'Media completes' trigger to set the value of that variable to True .

2. I added a trigger to control the Next button. If 'videoCompleted' is True means, it will be stayed as normal and if it is False, the Next button will be turned to disabled state.

3. Its a restricted navigation course and there is no seek bar for the course.

Issue: The other pages (10 pages) are just a static pages, no issues found. In those static pages, Next button will be in disabled state, after timeline ends, it will be enabled and when revisiting the page also, it will be in normal state only - as we expected.

But in the video page, first time, Next button is in the disabled state, after completing the video, Next button is getting enabled and the value of 'videoCompleted' is set True. My expectation is, since the value of 'videoCompleted' is True, when revisiting the video page, the Next button will be stayed in the Normal state. But it is not getting enabled when revisiting the video page again.

Time being, I added a generic trigger, after completing the video, the Next button will be enabled without checking any conditions. 

If I changed it as Free navigation, the video page is working fine. 

Why is the Next button not getting enabled based on a condition (using a variable) when revisiting the page?

Storyline version: 3.77.30568.0

Browser: Edge and Chrome

Thanks and regards,

Venkatesh, J