Loading screen and game are glitching, the screen is flashing and there are lines cutting across everything.

Put the summary of the bug you're having here

What I expected to happen was...:

The game would open and play as normal

What actually happened was...:

The screens are glitching. It starts on the main start up screen, then continues on the loading screen and into the actual game itself. All sorts of other icons are showing up and the icons that should be at the bottom (health, items etc) are flashing in and out. It is also completely draining and slowing my laptop right down trying to keep the game open.

Steps to Reproduce:

1. Just open the game it starts from there