[popcornmix]

But for example these two do not work in full height with zoom:

As far as I can tell, kodi is behaving as expected.
The video files are poorly encoded. The frames (for the first one) are 720x576 but the actual usable video is 720x376.
There are 100 black pixels encoded at top and bottom of video. See image.
This messes with kodi's ability to scale image to fit screen. Obviously the video should have been encoded as 720x376 without the black pixels included.

I get identical behaviour with kodi on linux in the different zoom modes, and also VLC on linux when playing these files.