Another actor is not firing a trigger

I got this cardboard project [CardboardVision][1] and I want to use a single trigger to fire a widget to show text on display.

But I actually noticed that the standard “GameMode” set on project settings is not GameMode as usual, instead of that I have “FirstPersonGameMode” that is a new customized GameMode.

So, If a create a single trigger and I set in project settings to GameMode I easily can look at the widget I already create (but I don’t get the cardboard vision). If I select another GameMode (for example, FirstPersonGameMode) the trigger just doesn’t fire but I get the cardboard vision in the smartphone.

I know that I have to relate the blueprints or something like that but I just start developing on UE4 two weeks ago and I can’t find any documentation.

I would thank any help…

The original source I downloaded the project is from this link [OriginalProject][2]

Here some images

Anyway, I ended up using Google Cardboard plug in and start from scratch…