I am seeing a large gap in my index.
When the index consisted of non-linkable titles on blog posts, the index was as expected with titles on the index at the top of the page mimicking the style from the blog post page.
In efforts to not to have the title of the blog post have an underline but still have a link from the index to the blog post, I replaced the index entry with a linkable text box at the bottom of each blog post. Doing the for the first blog post produced what was expected. The title entry was replaced by the text box entry on the index. However, with the second and subsequent replacements, there is a large gap from the top of the index to the index listing.
Let me add that I place the linkable text on each blog post at the bottom of the blog post page. Also, it appears that the gap grows with each blog post addition.