Most elements on plugin directory pages are cached and can take up to 24 hours to update.
Hm, in that case, I recommend reaching out to the meta channel on Slack: https://make.wordpress.org/chat/
“Release confirmations for this plugin are enabled.”
Because you have this, changes cannot be made to a release after the release is made.
In order to make any change at all, to any part of the plugin, including the readme, then you have to do a new release.
