We noticed the 'Related Posts' on the single post page doesn't pull the same number of items consistently even though they all belong to the same category:
1: https://dev.glideagency.com/study-perth/blog/post/how-to-beat-the-flu-this-winter - Showing 3 related posts
2: https://dev.glideagency.com/study-perth/blog/post/the-biggest-things-in-the-biggest-state - Showing 4 related posts
3: https://dev.glideagency.com/study-perth/blog/post/whats-on-in-perth-this-wa-day-long-weekend - Showing no related posts
As you can see, all of the above posts belong to the same category: https://dev.glideagency.com/study-perth/blog/category/live
Please let us know, thanks.
Related posts are the posts that have the same tags no mater if they belong to the same or different category. Related posts component search for posts with the same tags. So i guess that latest post that have no related posts either has no tags or its tags are not found in any other article.