Resolution not captured correctly on init

[PyroFire232]

There's an issue how UI::getScreenWidth/Height does not give the correct numbers for some time during initialization.
In my feature branch, it is particularly noticeable how the loading screen starts at full screen, then shrinks to a tiny 10x10 square at the top left corner of the screen, then back again to full screen.
The only thing that can cause this is the resolution not being captured correctly.
I'm not sure what's causing it, but it seems to happen between the player controller init, and when the first game world object is spawned.