Perry,
I actually fixed the problem. The problem was with configuring the gatsby-plugin-offline. Apparently, and to cache correctly, I had to use a global pattern to make sure HTML files were included. Oddly, I didn’t have to do that before but then again I changed a lot building this site. To make offline access even better, I had it match all static files as well. The cache is larger and slightly slower on initial load but faster on subsequent loading plus it now adds the icon to Android phones.
Thanks for getting back to me.
Bill