Issue was with how the ignored field/fieldtypes were stored in the publisher_settings table. I want no fields or field types as ignored so this is expected to be an empty array. Somehow in the table this has been stored as [“”] which resolves as a single array with an empty value.

No matter how I amend the setting in the CMS I cannot shake this initial empty entry.

Unfortunately this creates a false positive and the system believes the title field is ignored and so always shows the non-draft version.

I have worked around this by adding a few extra lines to the settings service to remove any empty stings like this from json setting types.

Here are the extent of my changes. We are working to tight delivery schedules so forgive me if I take urgent temporary steps to reach closer to stability:

foreach ($settingsQuery->result() as $row) {
            // json_decode on non-json strings returns null.
            if ($row->type == 'json') {
                $dbSettings[$row->site_id][$row->key] = (array) json_decode($row->val);
+                $dbSettings[$row->site_id][$row->key] = array_filter($dbSettings[$row->site_id][$row->key], function($item){
+                  return $item !== "";
+               });
            } else {
                $dbSettings[$row->site_id][$row->key] = $row->val;
            }

            $settingTypes[$row->key] = $row->type;
        }

I am happy to contribute pull requests to a private repository in the future.