Continually looping back to Unlock with Patreon and then Allow screen, never allows access

Members could access. Just finished a total reconnect.
Deleted the client from
Cleared the Connection Details from /wp-admin/admin.php?page=patreon-plugin

The reconnected using freshly generated keys.
Verified that the Redirect URI was correct.

Still have the issue. Help!

WP 5.8.2 with PHP 7.4.27
Patreon WordPress 1.8.1 with API v2
Patron Plugin Pro 1.4.8
Patreon Button, Widgets and Plugin 2.1.5

Update: It seems to have magically started working again. No idea why. Is there a known delay after making a connection – “Please wait 30 minutes before going into the pool.” – or something?

Do you have any caching plugin at your site? Or caching system at your host? Where are you hosted?