It looks like DriveThruRPG have resinated their publisher RSS feeds, and they are working again now for viewing and for importing products into RPG Trader. There are some formatting differences, which we have accounted for, and the import from DriveThruRPG is now available again.
The one big difference is they no longer include an image in the feed, so we are unable to import that. That’s outside our control, unfortunately, so we can’t do anything about it. If the images return to the RSS feeds in the same format as before they will work again on import.
Updated import documentation here: