Hey Stevie, thanks for reaching out & we'll do our best to help you out!
Hm, this really sound very extraordinary, to be honest, since we haven't heard about this kind of behavior before! What are the blogs in question? We'd really like to take a closer look at them, if possible.
Also — note that related posts only appear inside blog posts and not on the home page of your blog (that is, if you haven't made any changes inside your theme). And you should check if you haven't by accident exclude a certain category in your plugin settings, which can disable your related posts from showing up.
Could this be the case?
Either way, do let me know what's up and where it's happening — I'll do my best to help you out!
Take care & have a nice day!