It Takes Two problems

I am playing it takes two with my friend, and it was going well, until we got to the deeply rooted level, im playing may while my friend is playing Cody. At some point in the level we have to shoot a swarm of insects to finish the checkpoints, But every time we try to do so , when the swarm gets to the point where we are supposed to shoot them they disappear for me. If i look to my friends screen on my screen, they also disappeared, but on her device , she can still clearly see them. I tried switching characters with my friend, tried restarting the checkpoint and even my internet connection. And still nothing i still have the swarm disappear for some reason i can not figure out . What can i do to solve my problem?