Edit 2.
Oh, looks like I know what's the problem. Have you noticed that your thread (this thread) has two "list code" in the top. It's because when you post an end tag of insert list, its start tag will automatically appear.
Edit your thread again, you will now see 4 start tag of insert list in the beginning, it's because you include 4 end tag of insert list. It only means whenever you post an end tag it's partner which is the start tag will automatically appear.
Quote this post of mine and you will see that there are additional 1 start tag in the beginning of my post it's because I have an end tag of Insert list in here in my post, it's the Bold one with color green above.
Edit - Sorry my mistake, same problem there too. So I got the answers what I searched and I will lock the thread.