Thank you Gary for your time, I really appreciate your help trying to sort out my mess.
The test posts post on the home page, newest (#2) first, #1 below & NO “Nothing Found”.
Before I added them I had the “Nothing Found” & (below) the “Ready to publish your first post? Get started here.” message.
The Featured images work on both featured (“Nothing Found”) & the test posts; i.e. show and “move next” on their own or when clicking the “<” or “>” symbols.
The Images are a part of the “featured” post. The post does not show, only the images at the top (the “<” or “>” symbols); the featured posts & images should be below the moving featured images, the test post are but the “real” posts aren’t.
According to the doc for Dyad-1 & 2 I used the tag “featured” on the “Featured” panel and on the featured post, then added the (featured) image(s).
On another support page (I don’t remember where) explaining the “Featured Content”
the tag “slider” (visible in a screenshot of the “Featured Content” panel) was used. I used “slider” in “Featured Content” and as the tag for the featured post.
I don’t know/remember which tag worked (slider or featured). However, I have since used either (stand alone) or both tags with the same result i.e. “Nothing Found”. I have since removed the slider tag & slug.
The only tag now is “featured”.
I removed my 2 test posts and I’m back to “Nothing Found”. (The 3 “real” featured posts worked before, the pictures were just too big and necessitated the movement of the page scroll bar. I wanted 3 in a row (Dyad-1) but I’ll settle for 2+2 (Dyad-2).
All the menu items work: about, blog & page (which I created new & then deleted the “Sample Page”.
At the risk of seeming ungrateful or worse – a jerk, the site works as I’ve described above.