Zero, I think it might be when you are copying the link. When you first roll, a screen will pop up showing the roll and below that will be a link. You need to click that link to another screen, again showing the roll and then copy the that to link over. (That making sense?)
(edit: Zero, I looked again at what you link, and your linking a part that rerolls when activated, which is why it always comes up different. If you look at the screen, there is a part at the bottom that says "You can link to this roll at" and then gives a link to another page. Go to that page, and then link that page in and it should fix the problems)