insert site content - only entity showing is Content

I've create a list and setup a node of a particular content type. For my campaign, I want to populate my template's main content area with the content from the node and I think I should be able to do this where I select "node" as the entity type in the dropdown list and then enter in the title in the autocomplete field and select a view mode. However I don't see node as an option in the select list, only "Content."

And when I select "Content" the autocomplete field for the title can't find the title. I've tried this for my special content type that I want to use as the basis for my emails, and also just the basic page content type as well and I can't get this to work with either of them.

I am able to insert a token into the field by clicking the "insert entity token", but I can see it's looking for the node type of entity
[mailchimp_campaign|entity_type=node|entity_id=test|view_mode=full]
...and I see the raw token snippet as my text in my email preview.

What to do. Anybody?