Undead Core's mini-cores disappear on-screen

[Clownacy]

(This bug is present in the 3DS port, by the way. Heh.)

In the cutscene right before the Undead Core fight, the stationary 'mini-cores' despawn while on-screen. They're normally off-screen in 4:3. Obviously I can't just not let them despawn, so I guess I'll have to either move them a little, or make their disappearing a little more presentable (maybe some dust clouds?).