Possible problem with guzzle time out?
Dmaster is showing errors like:
Client error: `GET https://dmaster.demo.civicrm.org/sites/default/files/civicrm/ConfigAndLog/CiviCRM.90a28e50be66bbeccec00513.log` resulted in a `403 Forbidden` response:
Forbidden (truncated...)
Client error: `GET https://dmaster.demo.civicrm.org/sites/default/files/civicrm/upload/delete-this-9dsdcSHhVV` resulted in a `403 Forbidden` response:
Forbidden (truncated...)
Client error: `GET https://dmaster.demo.civicrm.org/sites/default/files/civicrm/custom/delete-this-6tvZaRSJVt` resulted in a `403 Forbidden` response:
Forbidden (truncated...)
And system status page is not loading. No javascript errors. Initially this occurred on /civicrm but that subsequently loaded however error repeated on using api explorer - was returned from a System.check call.
Additionally Extension Database upgrades had not run (Not sure if this is related or not.) I ran to confirm this didn't resolve the issue.
https://chat.civicrm.org/civicrm/pl/pjpdowkfri8pumjdxt3ztcccfy