Shared video link offers empty player - Android Chrome

So I’ve shared a video to a group of people and was expecting just to see a download button.

Rather, this player is shown, but doesn’t do anything in Chrome on Android. The download button is below (off screen) the player.

Can I a) disable it or b) get it working?

NC 10.0.1
Android 6.0

@tflidd @LukasReschke any ideas?

I have no android device to test it. Did you try different codecs, perhaps this one is not compatible. Does the video show when you login as a regular user and only the download-interface has this problem? Is there an error console in mobile browsers?

Ok it’s the MKV format. I was under the impression the video player/gallery supported MKV. Android plays it fine when downloaded.