matchmaking problems with party

Is anyone, having party issue in matchmaking? My friends and I are having problems keeping a party together. After each game a team member won’t be part of the party, when we back out of post hobby. It will take turns on you it will kick out. Also one of my friends and I will lag into our own games. Then when we look at our friends the part blew up everyone is in the same game, but not in the same party no more. I wondering if anyone else is having the same issue.