Cannot import "expire_date", package id, etc.

I’ve imported my listings quite a few times so far and there are 3 important fields that do not import for me for some reason: 1) expire_date 2) is_featured 3) package_id

All other fields import just fine (including many custom fields, so I figured this was just a limitation of the import/export feature).

I’ve been able to work around the second 2 by temporarily changing my default package type to one that matches the type of listings in my csv (so far, all my listings are of the same packge type however this solution will not work well long-term).