The pop-ups worked previously, but suddenly do not work. The map URL is https://epa.maps.arcgis.com/apps/StorytellingSwipe/index.html?appid=45aea0ec00d44a31826fc3ed51995908 , and pop-ups are enabled in the web maps that power both sides of the swipe and within the Story Map.
I noticed that the White House's Digital Divide swipe map (http://esrifederal.maps.arcgis.com/apps/StorytellingSwipe/index.html?appid=bb31238b494041caa444b4d4a2fe0949 ) is also not displaying pop-ups. Is this an AGOL glitch?
Here's another map that seems like it should have pop-ups: http://senate.maps.arcgis.com/apps/StorytellingSwipe/index.html?appid=390dcc12b37248d9b6f3b5418c31820e