Firstly, much thanks for reading my post! So preferably, my game looks like this. There's a simple additive gradient creating the light and the rest of the light is subtracted from the scene:
However, seemingly at random (I can even restart my debugging process and it'll switch back and forth) it will render with this appearance:
Notice the strange metallic-looking effect on the wall tiles. This effect also appears on enemy nodes and bullet nodes. Any ideas as to why this may be occuring? Had this problem before the new update too.