Missing fields from CSV in bulk API

[dmchaplin]

I have the same fields excluded consistently from the CSV import file when using the bulk API

I do a comparison of both orgs and the fields are there.
then Export, and the field has data in the JSON
I import using the BulkAPI, and those fields are not populated.
I've pulled down the request.csv, and those fields are not in the CSV
The same command using the standard API uploads those fields fine.

It appears that if the first record in the sobject__c.json has null or false as the value, then that field is not loaded for ANY record.