The React SPA is set up to dynamically pull content from a server based on the URL. There is an index.html file sitting in a directory that routes to the correct content from the page requests. The URLS are set up to look like this http://www.example.com/articles/#/title1. A site map, which lives at example.com/articles/sitemap.txt, has been submitted with all of the URLS in the appropriate format. As of a week in only the page at /articles has been indexed.
In the particular environment deployed the rewrite rules can not be changed.
"Fetch and Render as Google" in Search Console appears not to work with URLs that contain a #.