Hi, just installed yesterday app on Xbox One, works really well as expected from VLC, best player ever. Tried some mkv that didn't work on Xbox One Microsoft's own player but found a problem while connecting to a SMB drive. It asks for user/pass but after entering it the app just closes (checked several times). User/pass I enter are verified ok (tested from a laptop).
About the interface I think separated buttons for audio and subtitles would be better, and allow pressing the button to change them instead of open a menu (maybe another button for menu with advanced settings for audio/subs), but this is just a suggestion. Also would be nice to add the posibility to connect to UPNP Kodi server, I wasn't able to see it from VLC.
Anyway, nice work, thanks you a lot for getting us VLC for Xbox!