Hi,
If I see correctly, there are 4 results, when the checkbox is checked, but the bottom 3 are kind of strange. I inspected the page, but they seem like a content section of a different element, not the search results container: https://i.imgur.com/WxKylGo.png
If you try searching for something non-existent. This is either because it is a different page builder element of some sort, or maybe the live page loader has an incorrect setup. Try changing the live page loader selector to this:
#insights-archive
It might not change much, but it is worth a try.