Youtube doesnt mark my videos as seen

When I am finish watching a youtube video I notice the red bar isnt complete meaning youtube thinks I didnt finish watching the video . When I try these on Google it worked well ,it just happens in Brave that the red bar under the video doesnt complete when am finished watching the video .The last time I used Brave youtube worked perfectly until I download it yesterday and notice the reproduction bar wasnt working correctly.

Link :

The site works as expected when using Chrome , it just happens with Brave.

[Version 1.5.115 Chromium: 80.0.3987.149 (Official Build) (64-bit)]

1 Like

Seems like related to this Youtube not saving video progress.

Closed as duplicate.
Thanks for reporting.