So this only happens when I’m playing with my sister as we share an Internet connection.
The game finds a match, starts loading and as she gets loaded in, I’m kicked. It doesn’t matter who hosts the session, whether I invite her to my game or vice versa I always get kicked.
UPnP in our router settings is turned off but it makes no difference and I can matchmake with other friends no problem so I have no clue what the issue is.
Cheers 