How to continue in challenge mode ?

[JoCool]

I just discovered the new challenge mode and started the first one (Williams) with TOTAN ... after finishing my game I have no clue how to continue. I got enough points but the screen just shows me the entire flipper, no menu no button to click on. I can't start a new game with Return as usual and cannot higlight up the menu with ESC as usual. The only way ist to kill the process in the task manager... I started the challenge over two times, always with the same result.

What is wrong or what I have to do to continue in challenge ? Any hints or clues for me ?

 

[Deathtank]

maybe it's bugged, cuz I can continue with no problems...:/