Public List without login?

I’m new to dynalist but cannot figure out how to share a document publicly. The site indicates it’s a feature, and when I go through the process of Share > Public link, etc. It doesn’t work. When the visitor goes to view the list they are prompted to login. What am I missing?

Did you follow the instructions here? http://help.dynalist.io/article/69-share-documents-publicly-via-a-link

Make sure you check this box: