Why is the mp3 picture not displayed in full screen?

Question

MP3

I added a picture for the mp3 file. It is displayed, but not evenly, that is, there are quite large gaps at the bottom and at the top. Size -- 1280x722 pixels.
But! I have other mp3s, not mine, with a 1400x1400 picture -- it displays correctly, in full screen. And there is another one with a 1280x720 image, that is, 2 pixels smaller than mine - and hers too! displayed correctly - in full screen.