Steam (wcmls) Class 350/1 Is Broken. :(

I can't move the master key on the Class 350/1 because I can't operate it with the mouse.

It is therefore unusable in both the tutorial and the scenario.

 

Update:

I still can`t move the master key and don`t know why.

 

On Xbox, sometimes if I pause the game instantly after loading into a service, I cannot use any of the train's controls.

 

If OP on PC/Steam can’t you just use Ctrl-W on the keyboard?