2nd HUD is not listened by 2nd Player Controller

I could configure 2 Players Controllers and also I could spawn 2 HUD classes, like this screenshot:

And both HUDs are recognized:

But I discovered that since the first HUD spawned is listened by the first Player Controller, like this screenshot:

The 2nd HUD is not listened by the second Player Controller:

Is there any way to solve this? Am I missing something?