I found out my own answer to this in testing. My banner ads were showing on my test server in Edge but not in Chrome. Well it dawned on me that I had ad blocker going and ad blocker might be blocking ads on my test pages.

Sure enough as soon as I disabled ad blocker for my test site in Chrome, ads showed. This was after I spent maybe 12 hours trying to comb the code for errors that might be causing it.

I just thought I would post this so someone else might night get as frustrated as I did. Do not run ad blocker in any browser on your live or test website. It will block banner ads, especially the HTML ones.