Game doesnt function well when launched

Hey. I am trying to create a simple game - when I click a button, a box I am facing to will reveal a number.
In the editor the game works fine, but when I try to launch it, the number wont reveal.

Video of the editor version: - YouTube

Video of the launched version: - YouTube

what do your blueprints look like.

Like that:

Hey please I need an answer asap

Anyone have a solution?