I manage around 20 web sites for various clients that are hosted on WP Engine. I frequently find (today for example) that there is a security release available for a plugin , or in this case Wordpress version 7.1.2 that does not show in the usual dashboard view. Sites I’ve checked show far running 7.1 show no update available. The happened a week ar so ago when there was a Gravity Forms update available, but not showing in the dash.

This is mildly infuriating. Support says its because the updates have not been approved or tested for the server environments yet... But the real reason has to be because WP Engine started using a clone of the Wordpress plugin repository back when Matt M. was feuding with them.