Widget gets displayed too small in HUD and dropped on wrong location.

Widget is displayed smaller in HUD than it should be (1,5 times smaller).
When the widget is dragged it has the correct size, but gets smaller again when dropped back on the HUD.

How can we stabilize the Widget’s size?

Furthermore, the drop location should be the location of the mouse on screen. But in this case the widget is dropped in a different location.
If the widget gets dropped it moves over the X and Y axis at a greater distance than it should be.

How can we make sure the widget drops at the desired location.

I followed the tutorial by Wes Bunn (Content Creator at Epic Games)

(Drag and drop with UMG)