The problem I’m seeing is that you’re creating your main menu on Begin Play in your gamelevel_1. The issue here is that each time you’re hitting the Play button to open the level, you’re essentially recreating that Menu widget again.
What I did to fix this was create a new level called MainMenu, and set it to the Default Map. Then, I moved the content from the gamelevel_1 Level blueprint into the Main Menu level blueprint. That way, you start on the MainMenu level, and then when you hit play it loads gamelevel_1, which is no longer spawning that widget.
Does that make sense?