I want to draw a line with the pattern of a sprite. I created a material, attached the sprite to it, but when I attach the material to the line, it becomes invisible (transparent?)
I would say you cannot use Sprites without writing your own shader if even possible. If I’m correct, the Line-Renderer uses the same shader as the trail-renderer, which is a particle shader. By default sprites are only supported by the two Sprite Shaders.