Patron unable to access content (looping back to allow screen)

After clicking unlock with patreon, it’s asking my patron to authorize, which he allowed. but then it went back to the same page with content still locked. Clearing cookies and changing his browser also gave him didn’t fix it. I checked his payment status since it’s the start of a new month and confirmed he was charged.

Edit: the problem has been resolved, but the solution and cause remains unclear. My patron just happened to be able to overcome the issue on another attempt hours later.

It may have been due to the 1st of month, the api catching up to payment status of patrons.