I don’t see the option and whenever I try to trade a card it says it’s locked into an event but there isn’t a way to adjust the lineup or take him out. He’s not in my normal lineup at all so that could be the only reason
Found the answer. If this happens to anyone just load in 5 matches with your friend and have him quit then it’ll prompt you to lock in a new lineup
I don’t see the option and whenever I try to trade a card it says it’s locked into an event but there isn’t a way to adjust the lineup or take him out. He’s not in my normal lineup at all so that could be the only reason