threejs贴图跑到另一个面

Question

        let texture = new THREE.TextureLoader()
        let demo1 = new THREE.MeshStandardMaterial({map:texture.load('./demo.webp')})
        let demo2 = new THREE.MeshLambertMaterial({map:texture.load('./demo2.webp')})
        let demo3 = new THREE.MeshLambertMaterial({map:texture.load('./demo3.webp')})
        let demo4 = new THREE.MeshLambertMaterial({map:texture.load('./demo4.webp')})
        model.children[1].material = demo1
        model.children[2].material = demo2
        model.children[3].material = demo3
        model.children[4].material = demo4

萌新一枚，在用threejs给一个模型的各个面贴图的时候，发现每次页面刷新，每个面的贴图都会不同，不知道为啥