On my friend's dog park rp, I have 2 dogs. Both of the pictures are a bit big, and one of my pictures, when I put it in center, it worked, but when I put it in center on my other dog's picture, when it comes out, it's a red X, and it's not in the middle of my post. It only worked when it isn't on center. How do I get it to be in the middle of the page without the picture disappearing?