I’m glad that you’re reporting this issue as this is definitely not normal.
Almost all notices are tucked away under an “SSO” notification icon in the top toolbar — very few are displayed in the actual content area, since WordPress does a poor job if handling and displaying notification messages — and almost all are dismissible, unless there’s a serious problem being reported that must be fixed immediately (and fixing the problem removes the notice).
And, obviously, if there’s a “dismiss” link, then the notification can be dismissed permanently or for the time suggested (some notifications are serious, but can be dismissed for a few months, for example).
If a notice has been dismissed, and the same notice is shown again, before the dismiss time has expired, then this could indicate a problem with Ajax calls, the WordPress transient cache, or the WordPress user option table.
I would suggest you enable the WP_DEBUG constant and activate the Query Monitor plugin, as suggested here https://wpsso.com/docs/plugins/wpsso/installation/troubleshooting-guide/ and make sure your site is error free.
You could also try clearing all transient objects and clearing all user dismissed notices under the SSO > Tools and Actions page, in case the WordPress database or object cache is stuck and needs a forceful reset.
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