Text blocks input into button underneath, even if not hit testable

I have diagnostic text (UTextBlock) that is visible on top of other UI elements (like UButton), but it blocks interaction. I tried setting text Visibility to not-hit-testable, but that didn’t help. Please advise, thanks.
Using Version: 5.1.1

NHT is enough. Either provide more details and hierarchy or use the widget reflector to see what you’re really hitting.