I have the same problem. I can’t find “OnHover” anywhere, and event created from OnMouseMove fires every tick when mouse cursor is over. Is there any UMG element that can fire only once when mouse cursor entered (exactly, “OnHover” 
- but i can’t find any UMG element with OnHover event ) and when mouse cursor leaves it?
I see i can “Event On Mouse Enter” and “Event On Mouse Leave” but it’s related to a whole widget, so this way i would need to make separate widget for every UI element that i want to use with ‘on mouse enter’…