Decals very transparent under static lighting

Just a heads up to anyone who tries to do this; it crashed my project and wouldn’t let me open it again.

Not a big deal, you can fix it from a config file. Go to:
C:\Users[computer name]\Documents\Unreal Projects[project name]\Config

Open the DefaultEngine file. Scroll right to the bottom and set r.DBuffer=False

Either this doesn’t work with the new version of the engine or isn’t supported by my graphics card c: