Thank you guys!
Haka, your example works wonderfully! Greatly appreciate this, it saved me a lot of time… and hair 
I have to ask though, you suggested that I use Mouse Enter instead of Event Tick - doesn’t Mouse Enter rely on a tick event as well?
Edit:
Another issue I noticed with my UMG Widgets is that to trigger hover events, I have to first left-click somewhere on the screen after I add the widget to the viewport. Is this because I am doing something wrong, or…?