I am having a similar issue. I sent a message through the MT Contact Page but have not gotten a reply. I put my photos in Flickr. I tried using the tool to find my Flickr User Id and it did not work however I am assuming it is the number at the end of this url: https://www.flickr.com/people/29473028@N07/ I have added my album id: https://www.flickr.com/photos/29473028@N07/albums/72157697034924971 (the number at the end of this url) and nothing shows up when I preview the page in Adobe Muse. I've tried just the simple preview from the link at the top right of the screen as well as the Ctrl+E preview in a browser. Muse CC 2018.1.0.266 Windows 10 Microsoft Edge 42.17134.1.0 Flickr Photo Gallery Version 1.2 Any help is greatly appreciated.