I Don't see the issue in this..

minetest.register_node("flags:english", {
    description = "English flag"
    inventory_image = "flags:english.png"
    tiles = "flags:english.png"
    groups = {oddly_breakable_by_hand=5, flammable=3}
    drawtype = "nodebox",
    paramtype = "light",
    node_box = {
            type = "fixed",
        fixed = {
            {-0.5, -0.5, 0.463173, 0.5, 0.5, 0.5},
        }
    }
})