Attention Wes Bunn - Drag and Drop on top of another item deletes dropped item

I watched the Drag and Drop inventory live training by Wes Bunn (Drag & Drop with UMG | 01 | Live Training | Unreal Engine - YouTube) and although I’m not trying to create the same system - mine is more like a game of Solitaire where you’re dragging cards around a screen and then placing them where you like - I managed to get the basic drag and drop functionality working.

The problem is that when I drag and item on top of another, it deletes the dropped item.

Either that or it’s merging the two, but for all intents and purposes it removes one of the items from the screen. Is there a simple way that we can check for an item underneath and offset the dropped item to prevent this from happening?