The system automatically turns your <br> to <br /> tags. Try using only one <br> and see if that fixes your problem.
This isn't a serious issue... but I find that when I edit my story, the spaces between the paragraphs become huge. I understand that you separate the text using <br> tags, but I usually just leave a return; when I went to my account to try and correct that, I discovered that there were twice the number of <br> tags between the paragraphs. And every single one looked like this : <br />
I've never used <br> tags like those before... and I'm not strong in HTML either. This isn't a pressing problem, but it can be tedious to read a fic which has five returns between the dialogues instead of just two. Can someone please explain this to me so I can correct it? Thanks!