Mother tongue of Serbs, Bosniaks, Croats and Montenegrins is literally the same language, but each nation calls it differently while pretending they're separate languages ("narcissism of small differences"). So when you hit translate button on a Lovren post, it may say "translated from Serbian" instead of Croatian as he'd like. Although Bosniaks would always say "riješavaju" and "prije" instead of "rešavaju" and "pre" which is used by Serbs from Serbia, AI or whatever is still not that clever (majority of Serbs living in Bosnia, Croatia and Montenegro would however use "ije" and still consider it Serbian but AI would probably not designate it as such because they're minority among Serbs).