New Patrons can't access posts right away

I’ve been encountering an issue the last couple of months where new patrons have been delayed 10 to 30 minutes before they can access content. This has resulted in an endless stream of messages from disgruntled patrons who think they are being ripped off. Any suggestions on how to fix this?

There was an issue at with Patreon API which affected logins. This was 1-1.5 weeks ago, it was fixed. Is this still going on?