Why are some elements repeated in the Screenshots?

Full page screenshots are not available for Opera, Safari 5.1 and Chrome 29+ due to a technical limitation with the framework used by us for capturing images. To overcome this, we have developed a solution for Safari 6+ and Chrome 29+ which captures the visible part of the page, scrolls down to capture the remaining part and then binds them in the final image. Due to this some elements are repetitive in the screenshot.