Is this a glitch?

[darealshivang]

Hi, I was boosting three online trophies with my partner but the game keeps ending for no Reason I tried with more than 20 peoples but it stills keeps ending, it works with only one player that's why I have all other online trophies and my internet connection was also pretty much fast and my partner Connection is also fast. I am frustrated with this, these three Trophies are the only one why I don't get platinum in this, these Trophies are I voted, Streak Ender, and overthrown. I have an EU version.