Hello. I have take 2 picture of the same place like this.
When i play Game. This black line change to blue, everything else is good.
Thanks for your Advice !
The dark grey is the color of the Scene’s environment. The blue is the clear color of the camera.
Select your camera and change the color of the Background field.
The camera have a default color when there is nothing to render. so this is an empty space. you can use something to fill this area.
you can also select the Camera and Change the Background field.
personally I like to see the blue background to know if there is any empty space that needs covering. and I would advice to fill the blue area with a black rectangle or use a black sprite.