We are using the Playfab SDK for Unreal Engine 4.
The players are able to join lobbies, and the current player lobby is correctly reflected at both the Multiplayer tab of the Players page, as well as the Active Games list of the Multiplayer page of the dashboard.
However, while GetFriendsList correctly returns the PlayfabIds and Statistics of all friends, CurrentMatchmakerLobbyId is always empty.
Do we need to turn this on somewhere in the Settings? Or could it be an issue that we're still using Legacy Multiplayer?