When enabling "Everyone except Administrators" in the PAPC Maintenance Mode Settings on the Live site (and probably other environments), upon logging out and then accessing the wp-admin, the user sees "Briefly unavailable for scheduled maintenance. Check back in a minute."
Steps to Reproduce:
Install PAPC and deploy to Live
On Live, access wp-admin and go to Settings > Pantheon Page Cache
Set the Default Max Age to 604800 (1 week) if not already set
Under "Maintenance Mode", select "Everyone except Administrators"
Click "Save Changes"
Log out of wp-admin
Access wp-admin again
See message "Briefly unavailable for scheduled maintenance. Check back in a minute."
Since it happens on a Live site and .maintenance is not present in the wp root directory (and isn't delete-able if it were), the workaround to get back to "Disabled" maintenance mode is to run terminus wp -- $SITE.$ENV option delete pantheon-cache to disable that setting and regain access to wp-admin.
Problem:
When enabling "Everyone except Administrators" in the PAPC Maintenance Mode Settings on the Live site (and probably other environments), upon logging out and then accessing the wp-admin, the user sees "Briefly unavailable for scheduled maintenance. Check back in a minute."
Steps to Reproduce:
Since it happens on a Live site and .maintenance is not present in the wp root directory (and isn't delete-able if it were), the workaround to get back to "Disabled" maintenance mode is to run
terminus wp -- $SITE.$ENV option delete pantheon-cache
to disable that setting and regain access to wp-admin.