When join in progress is enabled in my map, parties are always split randomly across teams, even if they join at the start of the game. Since 41.0, parties are being split again and I assume this is the cause.
Was this resolved in another issue or is this a mistake? Matchmaking with your party seems like core functionality, if players are given the option it should work, right? @Flak Sorry to tag you but can you confirm if this is correct?