Normal
Have the same issue, we figured it out. Essentially cream requires you to be the host. Only one can be the host and whoever isn't the host will be kicked. Havent found a way to disable it or if its even possible to disable host requirement in cream. What does work is that if youre the host, people with the legit purchased dlc can join you and the game will run. But you cannot play with someone who also has the cracked dlc because you must be the host if you have cracked dlc and 2 people cannot be the host.