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John V, yes, I did do turn updating on. However, I have orange, I mean green, on my face.
Although I cleared my history and refreshed my browser, apparently the pages were not updating.
This morning my headings came up... green!!!!
The key seems to have been editing all the cloned blocks the same way.
Now on to the next problem, changing the heading of the other articles in the topic. But now I have faith that editing the template will produce results!