Secret door has disappeared

I have completed all levels and had been playing secret door levels. Today the door is gone, replaced by the old roadblock cone. As a result I have no games to play and Rocket Race has no games either as it seemed to be associated with the secret door games. Results for Four in a Row challenges from the secret games no longer count either so I don't participate so as not to hold up others from earning rewards. What the heck is going on?