Why doesn't the Looping setting work on Audio Tracks in Widget Animations?

I have a WidgetAnimation in my WidgetBlueprint. I’ve added an Audio Track to the animation which I want to play different sounds once at different times during the animation. However, when I added the sounds I noticed they start looping after they’re finished. I saw a Looping setting (which I set to false) in their Properties but it didn’t do anything.