I see. Here is the UV layout. I chose border color to be the same color as texture that I am using. As for the border, there is a border when I render out my UV as an image. But where do I find out the how much part? Here is the image of the UV rendered.
i meant to see your UVlayout with the texture. padding adds a border around the edges of UV shells when baking the texture and helps with mipmapping artifacts which could be causing your issue.