Thanks for working on the issue. For what it’s worth, adding that debug rule to my functions.php file didn’t allow the connector feed to see the new hub post fields. I even tried deleting the connector and adding a new one and it still only sees the old fields. I had to add it to my wp-config.php to get them to show up.
Not sure if that will help in your search for a fix or not.
What server processes does it need to do the compression? I can make sure my server has those running.