I've created a story map template and a csv file using the csv template. I've uploaded my photos and thumbnails to flickr and have ccopied the url link to the csv file. When I open the story map, the content of the csv file (lat, long, description etc) are included but the imagery isn't found and doesn't show up in the map tour. I've set the flickr album and contents to be "public". Any ideas on what I might do to correct the problem?