Every level in my map is broken

I’ve opened my project and the map but everything is broken, the actor icons are flattened(Sc2.png), the materials seemed to become weird transparent(SC1.png), the level is black even if it has atmospheric fog n exponential height fog(Sc3.png) and the camera keeps shaking. SC4.png is the original level.

This is likely caused by the ‘Near Clip Plane’ setting which can be found inside the project settings.

By default it’s 10.0 and you probably shouldn’t go much lower than 2.0. But just be weary that when you ever change it you may have adverse affects with cameras. Also bare in mind you’ll need to restart the editor for the setting to take effect.

Hope that helps!