Your code uses the Pawn Control Rotation to detect if you’re looking at the attached UMG widget. This means that the WorldDir parameters reflect the 3D viewing direction of your Player Pawn actor. But since you’re using the mouse click event, I suppose you want to use mouse pointer to select the widget? In this case you must calculate the WorldDir from the mouse pointer, not the Pawn Actor orientation. In this case you could use something like the ConvertMouseLocationToWorldSpace node.