Need help please!

Hi! I got the Microsoft Game Pass a few days ago and my boyfriend and I decided to play all the gears games that are available. We played the first one without problems but the thing is that we aren’t able to play the co-op campaign of Gears 4, it crashes EVERY SINGLE TIME, it doesn’t freeze, it just closes and send us straight to the desktop . It just happens when we are in co-op mode, if we try to play solo it doesn’t crash, we’ve tried everything from changing graphic options to installing old graphic driver versions and we’re running out of ideas! Any help please? Thank you!