I disconnected the controllers, and then I saw the big green (A) at game start. Pressing enter led me to the menu.
When my 3 controllers are connected, the game starts right at the menu, but nothing is working.
I tried starting the game with 2 controllers, and it starts fine, the green (A) is there. If I plug in a 3rd controller, it disappears.
If I go to the menu with 2 controllers, it works fine. If I connect the 3rd one, the menu stops responding.