When someone uses a Game of Crowns ticket, it requires 2 players to join, and it announces in local chat. However, when one person joins, the second person cannot click in that dialog box in chat, they have to find the box in the play area to accept. I hypothesize that is because the chat box dialog was coded for races (which are only 2 player, not 3+) so when the first person joins, it thinks it is full.