UnityEvent.Invoke() is not doing anything

Hey,
This is the inspector:
View attachment 1039838

As you can see I want to call the function `SummonKey` but it's not calling it.
This is the code:
View attachment 1039841

It reaches there, when I debugging it prints the name of the function `SummonKeys` but NOTHING happens.
I am also debugging inside the function `SummonKeys` and it's not being called.

What am I doing wrong?