Blog post out of order

For some reason, the 6th blog post (Opening Day on the Down East Sunrise Trail) should be the 5th post. The publish dates of all posts are accurate, and no post is sticky. I am only seeing this on the desktop. The flout menu on the right shows all recent posts in chronological order. The mobile view also shows the posts in the correct chronological order. Why is this one post out of order on a desktop?

Any help would be greatly appreciated.

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