WP_Query on CPT Archive Page including Custom Taxonomy

I am running these args through WP_Query (returned by object to verify):

[query] => Array
        (
            [post_type] => post
            [category__in] => Array
                (
                    [0] => 1
                )

            [orderby] => date
        )

And this is being run:

[request] => SELECT SQL_CALC_FOUND_ROWS  wp_posts.ID FROM wp_posts  INNER JOIN wp_term_relationships ON (wp_posts.ID = wp_term_relationships.object_id)LEFT OUTER JOIN wp_term_relationships ON wp_posts.ID=wp_term_relationships.object_id
LEFT OUTER JOIN wp_term_taxonomy USING (term_taxonomy_id)
LEFT OUTER JOIN wp_terms USING (term_id) WHERE 1=1  AND (
  wp_term_relationships.term_taxonomy_id IN (1)
) AND wp_posts.post_type = 'post' AND (wp_posts.post_status = 'publish' OR wp_posts.post_status = 'private') AND (taxonomy = 'attachment_type' OR taxonomy IS NULL) GROUP BY object_id ORDER BY GROUP_CONCAT(wp_terms.name ORDER BY name ASC)  LIMIT 0, 20

This is only happening on a custom post type archive page, and attachment_type is obviously a custom taxonomy linked to the CPT.

This is causing an error of:

WordPress database error: [Not unique table/alias: ‘wp_term_relationships’