There's a bug about creating widget

i’m following this link https://docs.unrealengine.com/latest/INT/Engine/UMG/QuickStart/4/index.html and i did exactly the same things but it didn’t work for me please check if there’s bug

please help me to check please

I see you add a widget with a button on the “MyGame” level blueprint.
The button, when pressed, loads the “MyGame” level and then the “MyGame” level blueprint gets executed again (adds the widget again) and so on.

So yes, this probably looks like nothing happens. Load a different level on the button press.

This is not a bug.

Hi thank you for helping me i’m just a little bit confuse.so what should i do ? i really can’t see what is wrong there ?