Video showing desktop on top and bottom (no black bars)

I have Kodi installed on a single board computer and I have a weird problem playing videos.

Any video I play, with any resolution, on any resolution, will scale to the screen but where there is no video on the screen, instead of it being black, I can see my desktop and task bar. The top and bottom are completely transparent with the video in the center.

I’ve tried changing from fullscreen to windowed and it still does it.

It reminds me of using omxplayer on the raspberry pi where if you played a video it would do exactly what this is doing, and you could add the “-b” argument to make it actually fullscreen.

Is Kodi not using it’s own video player because I’ve never had this problem before?

I was using the Kodi in the default debian repos, but to try to fix this problem I switched to the nightly repo and updated, which did nothing for the problem.

This is on the Tinker Board running Debian Jessie Kodi 17.1 nightly.

Raspberry Pi 3 worked perfectly fine with Kodi.

The Tinker Board has a Mali-T764 GPU.

Thanks for any help!