Lobby Crash After Back From Game

[yuridavila]

My Lobby System and DigGame example are OK, but I adapt a CardGame to the Lobby and made a Plugin, all correct and OK... (This is not the same game, both are independent of other)

when all the 4 player enter in CardGame, all is right, BUT when the players BACK to lobby, PlayerListUI and GameListUI was not populated with the Players, but they are there, if they post a message, its sent and when new Users enter the Lobby (before enter a game), there are the Users. The users that join game when back are not in the Lists and the Games are not too, but they are there to others...

The crash is when one Player close flashWindow and the others see the Exit to Lobby Button.

Excuse me my poor english, but I crash my head and compare ALL with DigGame but anythink was wrong...

these is the FlashDebug Message:
TypeError: Error #2007: O parâmetro child não deve ser null.
at flash.display:isplayObjectContainer/addChildAt()
at fl.controls::BaseButton/drawBackground()
at fl.controls::LabelButton/draw()
at fl.controls::Button/draw()
at fl.core::UIComponent/callLaterDispatcher()