Jibri recordings start with a shot of Gravatar logo

Just like the topic suggests, my Jibri installation records just fine. But the first few moments of any recording starts with that blue G symbol of Gravatar over a black screen. How do I remove it, or at least change it to something else?

Now, I’ve realized that is my Gravatar sanctioned avatar. But, even after I do gravatar.disabled:true in the config.js, it’s still there.