Some blog owners are unsure what a Jump Break looks like, when applied to their blogs. Occasionally, in Blogger Help Forum: Get Help with an Issue , we see the confusion. Where's the Jump Break? or I added a Jump Break to several posts, but it never shows up! When asked for a screen print of what they're seeing, they may provide a image of the post, in the Post Editor Preview window - or possibly, the published post, but in post page view.
What Blogger won't tell you