Trying this again, though I have no idea what kind of extra information you want from me. Regardless of your platform, when enough players gather in one place to kill Odin, Behemoth, or an S rank mark, you end up only being able to see random selections of players, or, if you're lucky, the enemy flickering into existence momentarily. I regularly can't even see my own party, despite being able to see a dozen other players and their pets.