Cannot interact with start menu created from widget after packagin

So i followed this tutorial completely on creating a HUD, Menu.
https://docs.unrealengine.com/latest/INT/Engine/UMG/QuickStart/4/index.html

When i test in the editor it works fine the main menu. But after packaging. i cannot click the buttons, hovering over also doesnt change the button colour

I found the solution to this over here Mouse cursor doesn't react with Widget menu - UI - Unreal Engine Forums