DIfferent colored lights for each block strobe randomly. Lighting system is completely bugged and the only way to fix the issue is to close the game and restart, with a chance of the strobe lights still reoccurring. As you move, the colored strobe lights change. Entities, however, are not affected. Additionally, textures that adapt to their environment (grass, vines, leaves) also go back to their base color, gray. This bug makes the game virtually unplayable. (Unmodded Minecraft, No Aesthetic Changes/Configurations)