I am having exactly the same problem. Unfortunately I don’t understand a single word of your advice Roger. Can you express it in simple step-by-step layman’s terms?
I have a similar problem. I inserted the Jetpack Subscribe block in a WordPress website and it worked fine. Then I deleted it and inserted it again in a different page on my website. Now I cannot find my list of subscribers anywhere. If I go to WordPress dashboard and click Jetpack- Subscribers, I get a message to say I do not have a Jetpack site. How do I fix this so I can see my list of subscribers?
