Sorry but it doesn’t work for me. Even when I try dragging in from the corner as shown in your video.
Add a video to a track for example for the duration of a minute.
Then add an image on a new track, add the image in halfway in comparison with the video track and let it end perfectly to the end of the video.
Then try to apply the fade out filter to the image. I swear, when you do that, the filter won’t work.
I just noticed while trying something while typing this, that it worked. But that was only one time, I don’t know what I did. I saw two tracks selected in gray, on the left side. No part of any track was selected. I played it and it worked.
As soon as I went back to tooling around it doesn’t work anymore. It’s still not working in the preview or the exported video. I wonder what is going on?