HADMUG

I’m glad to hear it but…
It’s just near link “Delete”. I think it was better placed before ??

In any case, thanks for the answer and thanks for the plugin.

It doesn’t happen to anyone else?

It’s true. Sometimes you are searching and find complicated plugins, to configure and to use.

Duplicator is easy to config and do what you need to do: a backup of your wordpress site including files and database. And then you can easily install this backup like a new wordpress installation.

Sincerely I recommend it to always have a backup ready to use.

May it be the browser cache isn’t completely clear.
Try to clear it again.

@redzaustralia recommends this link: https://www.refreshyourcache.com/en/home/ to clear the cache in this post: https://www.ads-software.com/support/topic/new-seo-symbols-blankblack-edit-function-not-working .

I haven’t used it because it works fine to me but I hope this helps you.

Yes, I agree with you @redzaustralia. It’s important to update the plugin when is possible to avoid bugs.

It works to me to clear the browser cache at Firefox.
I usually don’t use Chrome and I try to open with this browser and it works fine.
Then, I’ve cleared the browser cache in firefox and it works, now I see the SEO information at the article’s edition page.
I think that is because there was nothing in my cache.

I’m sure you have tried this but I’d clear all again, close the browser or something like this…

Keep calm and try to clear the browser cache.
Don’t disable Wordfence plugin. It’s more important your site security than your next article seo… This can wait.

(Edited)
Clear browser cache solves the problem.

I think disabling Wordfence is not an option. Security is the most important ??

It doesn’t work in Firefox (42.0), but it works in Chrome (46.0).