UMG button to open level not working when i package game

So i hope someone can help with this.
I have a simple UMG menu (see attached image) with three buttons to open a specific level. When i run it through the editor they work and switch the level. When i package the project it loads the default game map each time. I’m clearly missing something. Any ideas? do i need to override the default map somehow through the level blueprint?
If i simply load them through the level blueprint when they are assigned to a keyboard key it works fine. But UMG it just loads the default map each time. Very irritating and i’m sure a simple fix for one of you Genius blueprinters out there…
Any help greatly appreciated.

Paulalt text

Solved my own issue. Was an issue with not adding the levels to load under the advanced project settings. The answer to this question below covered the same issue