[Bug] Full Screen is not Full Screen[42313 Dec-2016]

SubMan42

The full screen mode of Subnautica does not behave like full screen. Switching from windowed mode (takes up about a third of the screen, and not resizable) to full screen mode simply puts black bars over the rest of the screen. I have attached a screenshot of what full screen mode looks like on my computer. If it helps, I'm playing on a Lenovo ThinkPad Yoga 12, with an Intel i5 CPU. Additionally, the first time I played subnautica on my computer, full screen mode appeared to work fine, until I switched to tablet mode, and then the full screen issue happened. I've since tried restarting subnautica, playing with the resolution, restarting my computer, and deleting subnautica's local data and reinstalling it. None of these have worked.

Reproduction steps: First time on this computer: Launch subnautica and switch to tablet mode.
All subsequent times on this computer, including after reinstallation, launch subnautica at all.

Please help

Fullscreen not being fullscreen:
http://imgur.com/EGBwmO2

SubMan42

Edit: Just to clarify, the game does not crash, it just does what is shown in the image in full screen mode, and windowed mode, looks much the same, except where the black bars are is where the window ends