Double ball glitch?

So, we were playing last night, split-screen, PS3. I happen to glance at the other screen, which was Maya. And there were 2 separate bad guys in 2 separate Phaselock bubbles.

Needless to say, we were both heartily confused.

Anybody ever seen this?

I’ve seen something that looked like two separate bubbles, but heavily overlapped - I assumed at the time that the enemies had been so close to one another that the game couldn’t decide which one I’d hit, and generously locked both. Only ever seen that once that I can remember.