为什么我的材质在转换后变形以及发光模糊?

请问一下大佬,为什么我的素材在转换成材质之后图形的一部分发生了变形,以及我的材质为什么在关卡运行时总是会变得亮和模糊(Ask the guy why part of my material deforms after converting it to a material, and why my material always gets light and blurry when the level runs)

(这是导入的原素材(material))

(图片变得很亮很模糊,左下角变成了一整块(The picture becomes very bright and blurry,The lower left corner becomes a whole))