Blueprint Widget Value Problem

Hey Guys, i am quite new to unreal Engine. I got a problem with creating my 3d-menus for virtual reality. I have created different blueprint classes (BPMenu) as actors with widgets as a component and assigned widget blueprints as the widget class (PauseMenu). Now the strange things happens, i can call the menu BPMenu5 , but not the others, because they dont get a value. How can i fix that? What did i forget? It is really important, Thanks!!

Please, someone know how to fix it? It is really important, its part of my bachelor-thesis.

Seriously noone got an Idea what the problem is? I am desperate, cause i have no way around that problem.