Adds Not Blocked

When trying to watch a YouTube video in Brave all I see are add clips, not the actual video. I’m referring to this one:
“Het gevaar van Rusland wordt enorm overschat; met Coen de Jong en Wierd Duk”

When I want to see it in Chrome an add clip begins to run, but also the option to skip it. And when I have the Ghostery plugin activated, the add clip does not even appear.

So as it is now, I cannot watch that video in Brave… although after posting the above, the video thumbnail appears here, without adds. But that is different when I go to YouTube tappping on “YouTube” at the bottom of the video, or use that URL outside of this forum.

Please follow steps from here