So when ever I attempt to enable any Shaders, even the internal Shaders, my screen will start flashing very quickly, like that of a strobe light, before going to a solid light blue. It only happens in a world and not in the main menu. I am unable to do anything once the screen starts flashing or go solid blue except for closing the game. Shaders did work at first a week or so ago but they suddenly stopped working. I do not believe i changed anything major and I only have a very few mods installed. Those mods being Better Foliage, Optifine, More Player Models, and MrCrayfishs Furniture Mod. I have tried allocating more ram and less Ram with no changed. So I do not know why suddenly Shaders are failing and crashing like this.
I am on a Laptop that has Windows 10 64bit with 8gb of Ram with an Intel Core i7 processor and NVIDIA GeForce 942m graphics card.
If anyone could off any help that would be great. I've tried many ways and methods to fix it and I myself have had no luck so far.