How big is the video file? Could you potentially put it on Dropbox, or another file sharing service, and comment with a link to it, so that I can test? There likely is just an issue of some kind with the video file.
Hello the file is almost 600 mb (there is the link https://www.mediafire.com/file/2c39dh52yszbn4h/fffff.mp4/file )
Also, please check that the Video is toggled on in Visual Settings!
And that Video Opacity is set to 100% in Video Settings.
I checked but there was nothing