Uneven number of posts on homepage

Hi, I have the two column option but when it gets to the bottom of the page, only one post shows instead of two. The rest of the posts flow onto other pages which makes sense but not sure why it’s only showing one post at the end.

https://drive.google.com/file/d/1WK9u9KfkNgo-9GtVtCC7EJVcSCR0P2SJ/view?usp=sharing

The page I need help with: [log in to see the link]